diff --git a/collection_funcs.go b/collection_funcs.go
index 5029d62..11511ee 100644
--- a/collection_funcs.go
+++ b/collection_funcs.go
@@ -1,50 +1,40 @@
 package gosecret
 
 import (
-	"strings"
+	`strings`
 	"time"
 
-	"github.com/godbus/dbus"
+	`github.com/godbus/dbus`
 )
 
 /*
-	CreateCollection creates a new Collection named `name` using the dbus.BusObject `secretServiceConn`.
-	`secretServiceConn` should be the same as used for Collection.Dbus (and/or NewCollection).
-	It will be called by NewCollection if the Collection does not exist in Dbus.
-
-	Generally speaking, you should probably not use this function directly and instead use NewCollection.
+	NewCollection returns a pointer to a Collection based on a Service and a Dbus path.
+	You will almost always want to use Service.GetCollection instead.
 */
-func CreateCollection(secretServiceConn *dbus.BusObject, name string) (c *Collection, err error) {
+func NewCollection(service *Service, path dbus.ObjectPath) (coll *Collection, err error) {
 
-	var path dbus.ObjectPath
+	var splitPath []string
 
-	if secretServiceConn == nil {
+	if service == nil {
 		err = ErrNoDbusConn
-		return
 	}
 
-	path = dbus.ObjectPath(strings.Join([]string{DbusPath, ""}, "/"))
-
-	// TODO.
-
-	return
-}
-
-// NewCollection returns a pointer to a new Collection based on a Dbus connection and a Dbus path.
-func NewCollection(conn *dbus.Conn, path dbus.ObjectPath) (coll *Collection, err error) {
-
-	if _, err = validConnPath(conn, path); err != nil {
+	if _, err = validConnPath(service.Conn, path); err != nil {
 		return
 	}
 
 	coll = &Collection{
 		DbusObject: &DbusObject{
-			Conn: conn,
-			Dbus: conn.Object(DbusService, path),
+			Conn: service.Conn,
+			Dbus: service.Conn.Object(DbusService, path),
 		},
 		// lastModified: time.Now(),
 	}
 
+	splitPath = strings.Split(string(coll.Dbus.Path()), "")
+
+	coll.name = splitPath[len(splitPath)-1]
+
 	_, _, err = coll.Modified()
 
 	return
@@ -54,16 +44,28 @@ func NewCollection(conn *dbus.Conn, path dbus.ObjectPath) (coll *Collection, err
 func (c *Collection) Items() (items []*Item, err error) {
 
 	var paths []dbus.ObjectPath
+	var item *Item
+	var variant dbus.Variant
+	var errs []error = make([]error, 0)
 
-	if paths, err = pathsFromPath(c.Dbus, DbusCollectionItems); err != nil {
+	if variant, err = c.Dbus.GetProperty(DbusCollectionItems); err != nil {
 		return
 	}
 
+	paths = variant.Value().([]dbus.ObjectPath)
+
 	items = make([]*Item, len(paths))
 
 	for idx, path := range paths {
-		items[idx] = NewItem(c.Conn, path)
+		if item, err = NewItem(c, path); err != nil {
+			// return
+			errs = append(errs, err)
+			err = nil
+			continue
+		}
+		items[idx] = item
 	}
+	err = NewErrors(err)
 
 	return
 }
@@ -90,27 +92,35 @@ func (c *Collection) Delete() (err error) {
 }
 
 // SearchItems searches a Collection for a matching profile string.
-func (c *Collection) SearchItems(profile string) (items []Item, err error) {
+func (c *Collection) SearchItems(profile string) (items []*Item, err error) {
 
 	var paths []dbus.ObjectPath
+	var errs []error = make([]error, 0)
 	var attrs map[string]string = make(map[string]string, 0)
 
 	attrs["profile"] = profile
 
-	if err = c.Dbus.Call("org.freedesktop.Secret.Collection.SearchItems", 0, attrs).Store(&paths); err != nil {
+	if err = c.Dbus.Call(
+		DbusCollectionSearchItems, 0, attrs,
+	).Store(&paths); err != nil {
 		return
 	}
 
-	items = make([]Item, len(paths))
+	items = make([]*Item, len(paths))
 
 	for idx, path := range paths {
-		items[idx] = *NewItem(c.Conn, path)
+		if items[idx], err = NewItem(c, path); err != nil {
+			errs = append(errs, err)
+			err = nil
+			continue
+		}
 	}
+	err = NewErrors(err)
 
 	return
 }
 
-// CreateItem returns a pointer to an Item based on a label, a Secret, and whether any existing secret should be replaced or not.
+// CreateItem returns a pointer to an Item based on a label, a Secret, and whether any existing secret with the same label should be replaced or not.
 func (c *Collection) CreateItem(label string, secret *Secret, replace bool) (item *Item, err error) {
 
 	var prompt *Prompt
@@ -140,7 +150,7 @@ func (c *Collection) CreateItem(label string, secret *Secret, replace bool) (ite
 		path = variant.Value().(dbus.ObjectPath)
 	}
 
-	item = NewItem(c.Conn, path)
+	item, err = NewItem(c, path)
 
 	return
 }
@@ -150,7 +160,7 @@ func (c *Collection) Locked() (isLocked bool, err error) {
 
 	var variant dbus.Variant
 
-	if variant, err = c.Dbus.GetProperty("org.freedesktop.Secret.Collection.Locked"); err != nil {
+	if variant, err = c.Dbus.GetProperty(DbusCollectionLocked); err != nil {
 		isLocked = true
 		return
 	}
@@ -163,7 +173,13 @@ func (c *Collection) Locked() (isLocked bool, err error) {
 // Label returns the Collection label (name).
 func (c *Collection) Label() (label string, err error) {
 
-	// TODO.
+	var variant dbus.Variant
+
+	if variant, err = c.Dbus.GetProperty(DbusCollectionLabel); err != nil {
+		return
+	}
+
+	label = variant.Value().(string)
 
 	return
 }
@@ -171,7 +187,16 @@ func (c *Collection) Label() (label string, err error) {
 // Created returns the time.Time of when a Collection was created.
 func (c *Collection) Created() (created time.Time, err error) {
 
-	// TODO.
+	var variant dbus.Variant
+	var timeInt uint64
+
+	if variant, err = c.Dbus.GetProperty(DbusCollectionCreated); err != nil {
+		return
+	}
+
+	timeInt = variant.Value().(uint64)
+
+	created = time.Unix(int64(timeInt), 0)
 
 	return
 }
@@ -181,17 +206,30 @@ func (c *Collection) Created() (created time.Time, err error) {
 	that indicates if the collection has changed since the last call of Collection.Modified.
 
 	Note that when calling NewCollection, the internal library-tracked modification
-	time (Collection.lastModified) will be set to the modification time of the Collection
-	itself as reported by Dbus.
+	time (Collection.lastModified) will be set to the latest modification time of the Collection
+	itself as reported by Dbus rather than the time that NewCollection was called.
 */
 func (c *Collection) Modified() (modified time.Time, isChanged bool, err error) {
 
-	// TODO.
+	var variant dbus.Variant
+	var timeInt uint64
 
-	if c.lastModified == time.Date(1, time.January, 1, 0, 0, 0, 0, time.UTC) {
-		// It's "nil", so set it to modified.
-		c.lastModified = modified
+	if variant, err = c.Dbus.GetProperty(DbusCollectionModified); err != nil {
+		return
 	}
 
+	timeInt = variant.Value().(uint64)
+
+	modified = time.Unix(int64(timeInt), 0)
+
+	if !c.lastModifiedSet {
+		// It's "nil", so set it to modified. We can't check for a zero-value in case Dbus has it as a zero-value.
+		c.lastModified = modified
+		c.lastModifiedSet = true
+	}
+
+	isChanged = modified.After(c.lastModified)
+	c.lastModified = modified
+
 	return
 }
diff --git a/consts.go b/consts.go
index 3616f29..f0e349c 100644
--- a/consts.go
+++ b/consts.go
@@ -157,6 +157,8 @@ const (
 	DbusPath string = "/org/freedesktop/secrets"
 	// DbusPromptPrefix is the path used for prompts comparison.
 	DbusPromptPrefix string = DbusPath + "/prompt/"
+	// DbusNewCollectionPath is used to create a new Collection.
+	DbusNewCollectionPath string = DbusPath + "/collection/"
 )
 
 // FLAGS
diff --git a/errs.go b/errs.go
index 7569eac..5822fe2 100644
--- a/errs.go
+++ b/errs.go
@@ -14,6 +14,10 @@ var (
 	ErrNoDbusConn error = errors.New("no valid dbus connection")
 	// ErrMissingPaths gets triggered if one or more Dbus object paths are expected but non/not enough are received.
 	ErrMissingPaths error = errors.New("one or more Dbus object paths were expected but an insufficient amount were received")
+	// ErrMissingAttrs gets triggered if attributes were expected but not passed.
+	ErrMissingAttrs error = errors.New("attributes must not be empty/nil")
+	// ErrDoesNotExist gets triggered if a Collection, Item, etc. is attempted to be fetched but none exists via the specified identifier.
+	ErrDoesNotExist error = errors.New("the object under that name/label/alias does not exist")
 )
 
 /*
diff --git a/item_funcs.go b/item_funcs.go
index 1794b8b..acb8162 100644
--- a/item_funcs.go
+++ b/item_funcs.go
@@ -4,12 +4,22 @@ import (
 	`github.com/godbus/dbus`
 )
 
-// NewItem returns a pointer to a new Item based on a Dbus connection and a Dbus path.
-func NewItem(conn *dbus.Conn, path dbus.ObjectPath) (item *Item) {
+// NewItem returns a pointer to an Item based on Collection and a Dbus path.
+func NewItem(collection *Collection, path dbus.ObjectPath) (item *Item, err error) {
+
+	if collection == nil {
+		err = ErrNoDbusConn
+	}
+
+	if _, err = validConnPath(collection.Conn, path); err != nil {
+		return
+	}
 
 	item = &Item{
-		Conn: conn,
-		Dbus: conn.Object(DbusService, path),
+		&DbusObject{
+			Conn: collection.Conn,
+			Dbus: collection.Conn.Object(DbusService, path),
+		},
 	}
 
 	return
@@ -51,7 +61,7 @@ func (i *Item) GetSecret(session *Session) (secret *Secret, err error) {
 
 	if err = i.Dbus.Call(
 		"org.freedesktop.Secret.Item.GetSecret", 0, session.Path(),
-		).Store(&secret); err != nil {
+	).Store(&secret); err != nil {
 		return
 	}
 
diff --git a/service_funcs.go b/service_funcs.go
index 07b3546..d03b1d4 100644
--- a/service_funcs.go
+++ b/service_funcs.go
@@ -32,7 +32,7 @@ func (s *Service) Close() (err error) {
 }
 
 // Collections returns a slice of Collection items accessible to this Service.
-func (s *Service) Collections() (collections []Collection, err error) {
+func (s *Service) Collections() (collections []*Collection, err error) {
 
 	var paths []dbus.ObjectPath
 	var variant dbus.Variant
@@ -45,15 +45,16 @@ func (s *Service) Collections() (collections []Collection, err error) {
 
 	paths = variant.Value().([]dbus.ObjectPath)
 
-	collections = make([]Collection, len(paths))
+	collections = make([]*Collection, len(paths))
 
 	for idx, path := range paths {
-		if coll, err = NewCollection(s.Conn, path); err != nil {
+		if coll, err = NewCollection(s, path); err != nil {
 			// return
 			errs = append(errs, err)
 			err = nil
+			continue
 		}
-		collections[idx] = *coll
+		collections[idx] = coll
 	}
 	err = NewErrors(err)
 
@@ -91,7 +92,7 @@ func (s *Service) CreateAliasedCollection(label, alias string) (collection *Coll
 		path = variant.Value().(dbus.ObjectPath)
 	}
 
-	collection, err = NewCollection(s.Conn, path)
+	collection, err = NewCollection(s, path)
 
 	return
 }
@@ -108,16 +109,71 @@ func (s *Service) CreateCollection(label string) (collection *Collection, err er
 }
 
 /*
-	GetAlias allows one to fetch a Collection dbus.ObjectPath based on an alias name.
-	If the alias does not exist, objectPath will be dbus.ObjectPath("/").
-	TODO: return a Collection instead of a dbus.ObjectPath.
+	GetAlias allows one to fetch a Collection based on an alias name.
+	An ErrDoesNotExist will be raised if the alias does not exist.
+	You will almost assuredly want to use Service.GetCollection instead; it works for both alias names and real names.
 */
-func (s *Service) GetAlias(alias string) (objectPath dbus.ObjectPath, err error) {
+func (s *Service) GetAlias(alias string) (collection *Collection, err error) {
+
+	var objectPath dbus.ObjectPath
 
 	err = s.Dbus.Call(
 		DbusServiceReadAlias, 0, alias,
 	).Store(&objectPath)
 
+	/*
+		TODO: Confirm that a nonexistent alias will NOT cause an error to return.
+			  If it does, alter the below logic.
+	*/
+	if err != nil {
+		return
+	}
+
+	// If the alias does not exist, objectPath will be dbus.ObjectPath("/").
+	if objectPath == dbus.ObjectPath("/") {
+		err = ErrDoesNotExist
+		return
+	}
+
+	if collection, err = NewCollection(s, objectPath); err != nil {
+		return
+	}
+
+	return
+}
+
+/*
+	GetCollection returns a single Collection based on the name (name can also be an alias).
+	It's a helper function that avoids needing to make multiple calls in user code.
+*/
+func (s *Service) GetCollection(name string) (c *Collection, err error) {
+
+	var colls []*Collection
+
+	// First check for an alias.
+	if c, err = s.GetAlias(name); err != nil && err != ErrDoesNotExist{
+		return
+	}
+	if c != nil {
+		return
+	} else {
+		c = nil
+	}
+
+	// We didn't get it by alias, so let's try by name...
+	if colls, err = s.Collections(); err != nil {
+		return
+	}
+	for _, i := range colls {
+		if i.name == name {
+			c = i
+			return
+		}
+	}
+
+	// Couldn't find it by the given name.
+	err = ErrDoesNotExist
+
 	return
 }
 
@@ -217,10 +273,14 @@ func (s *Service) Open() (session *Session, output dbus.Variant, err error) {
 /*
 	SearchItems searches all Collection objects and returns all matches based on the map of attributes.
 	TODO: return arrays of Items instead of dbus.ObjectPaths.
-	TODO: check attributes for empty/nil.
 */
 func (s *Service) SearchItems(attributes map[string]string) (unlockedItems []dbus.ObjectPath, lockedItems []dbus.ObjectPath, err error) {
 
+	if attributes == nil || len(attributes) == 0 {
+		err = ErrMissingAttrs
+		return
+	}
+
 	err = s.Dbus.Call(
 		DbusServiceSearchItems, 0, attributes,
 	).Store(&unlockedItems, &lockedItems)
diff --git a/service_funcs.go.old b/service_funcs.go.old
deleted file mode 100644
index c8b25b0..0000000
--- a/service_funcs.go.old
+++ /dev/null
@@ -1,147 +0,0 @@
-package gosecret
-
-import (
-	`github.com/godbus/dbus`
-)
-
-// NewService returns a pointer to a new Service.
-func NewService() (service *Service, err error) {
-
-	service = &Service{
-		Conn: nil,
-		Dbus: nil,
-	}
-
-	if service.Conn, err = dbus.SessionBus(); err != nil {
-		return
-	}
-	service.Dbus = service.Conn.Object(DbusService, dbus.ObjectPath(DbusPath))
-
-	return
-}
-
-// Path returns the path of the underlying Dbus connection.
-func (s *Service) Path() (path dbus.ObjectPath) {
-
-	// Remove this method in V1. It's bloat since we now have an exported Dbus.
-	path = s.Dbus.Path()
-
-	return
-}
-
-// Open returns a pointer to a Session from the Service.
-func (s *Service) Open() (session *Session, err error) {
-
-	var output dbus.Variant
-	var path dbus.ObjectPath
-
-	if err = s.Dbus.Call(
-		"org.freedesktop.Secret.Service.OpenSession", 0, "plain", dbus.MakeVariant(""),
-	).Store(&output, &path); err != nil {
-		return
-	}
-
-	session = NewSession(s.Conn, path)
-
-	return
-}
-
-// Collections returns a slice of Collection keyrings accessible to this Service.
-func (s *Service) Collections() (collections []Collection, err error) {
-
-	var paths []dbus.ObjectPath
-	var variant dbus.Variant
-
-	if variant, err = s.Dbus.GetProperty("org.freedesktop.Secret.Service.Collections"); err != nil {
-		return
-	}
-
-	paths = variant.Value().([]dbus.ObjectPath)
-
-	collections = make([]Collection, len(paths))
-
-	for idx, path := range paths {
-		collections[idx] = *NewCollection(s.Conn, path)
-	}
-
-	return
-}
-
-// CreateCollection creates a new Collection (keyring) via a Service with the name specified by label.
-func (s *Service) CreateCollection(label string) (collection *Collection, err error) {
-
-	var variant *dbus.Variant
-	var path dbus.ObjectPath
-	var promptPath dbus.ObjectPath
-	var prompt *Prompt
-	var props map[string]dbus.Variant = make(map[string]dbus.Variant)
-
-	props["org.freedesktop.Secret.Collection.Label"] = dbus.MakeVariant(label)
-
-	if err = s.Dbus.Call("org.freedesktop.Secret.Service.CreateCollection", 0, props, "").Store(&path, &promptPath); err != nil {
-		return
-	}
-
-	if isPrompt(promptPath) {
-
-		prompt = NewPrompt(s.Conn, promptPath)
-
-		if variant, err = prompt.Prompt(); err != nil {
-			return
-		}
-
-		path = variant.Value().(dbus.ObjectPath)
-	}
-
-	collection = NewCollection(s.Conn, path)
-
-	return
-}
-
-// Unlock unlocks a Locked Service.
-func (s *Service) Unlock(object DBusObject) (err error) {
-
-	var unlocked []dbus.ObjectPath
-	var prompt *Prompt
-	var promptPath dbus.ObjectPath
-	var paths []dbus.ObjectPath = []dbus.ObjectPath{object.Path()}
-
-	if err = s.Dbus.Call("org.freedesktop.Secret.Service.Unlock", 0, paths).Store(&unlocked, &promptPath); err != nil {
-		return
-	}
-
-	if isPrompt(promptPath) {
-
-		prompt = NewPrompt(s.Conn, promptPath)
-
-		if _, err = prompt.Prompt(); err != nil {
-			return
-		}
-	}
-
-	return
-}
-
-// Lock locks an Unlocked Service.
-func (s *Service) Lock(object DBusObject) (err error) {
-
-	var locked []dbus.ObjectPath
-	var prompt *Prompt
-	var promptPath dbus.ObjectPath
-	var paths []dbus.ObjectPath = []dbus.ObjectPath{object.Path()}
-
-	if err = s.Dbus.Call("org.freedesktop.Secret.Service.Lock", 0, paths).Store(&locked, &promptPath); err != nil {
-		return
-	}
-
-	if isPrompt(promptPath) {
-
-		prompt = NewPrompt(s.Conn, promptPath)
-
-		if _, err = prompt.Prompt(); err != nil {
-			return
-		}
-	}
-
-	return
-}
diff --git a/session_funcs.go b/session_funcs.go
index 4664698..edc4026 100644
--- a/session_funcs.go
+++ b/session_funcs.go
@@ -4,6 +4,8 @@ import (
 	"github.com/godbus/dbus"
 )
 
+// I'm still not 100% certain what Sessions are used for?
+
 /*
 	NewSession returns a pointer to a new Session based on a Service and a dbus.ObjectPath.
 	If path is empty (""), the default
diff --git a/types.go b/types.go
index c8a14a1..d783e9f 100644
--- a/types.go
+++ b/types.go
@@ -87,6 +87,10 @@ type Collection struct {
 	*DbusObject
 	// lastModified is unexported because it's important that API users don't change it; it's used by Collection.Modified.
 	lastModified time.Time
+	// lastModifiedSet is unexported; it's only used to determine if this is a first-initialization of the modification time or not.
+	lastModifiedSet bool
+	// name is used for the Collection's name/label so the Dnus path doesn't need to be parsed all the time.
+	name string
 }
 
 /*