diff --git a/etiquette/constants.py b/etiquette/constants.py
index 552a876..56c22b2 100644
--- a/etiquette/constants.py
+++ b/etiquette/constants.py
@@ -146,8 +146,8 @@ DEFAULT_DATADIR = '.\\_etiquette'
 DEFAULT_CONFIGURATION = {
     'log_level': logging.DEBUG,
 
-    'cache_size_album': 200,
-    'cache_size_photo': 1000,
+    'cache_size_album': 1000,
+    'cache_size_photo': 100000,
     'cache_size_tag': 1000,
     'cache_size_user': 200,
 
diff --git a/etiquette/objects.py b/etiquette/objects.py
index 9460da5..97fa3d8 100644
--- a/etiquette/objects.py
+++ b/etiquette/objects.py
@@ -210,6 +210,8 @@ class Album(ObjectBase, GroupableMixin):
         self.description = db_row['description']
         self.name = 'Album %s' % self.id
         self.group_getter = self.photodb.get_album
+        self._sum_bytes_photos = None
+        self._sum_bytes_albums = None
 
     def __hash__(self):
         return hash(self.id)
@@ -324,12 +326,14 @@ class Album(ObjectBase, GroupableMixin):
             self.photodb.commit()
 
     def sum_bytes(self, recurse=True, string=False):
-        if recurse:
-            photos = self.walk_photos()
-        else:
-            photos = self.photos()
+        if self._sum_bytes_photos is None:
+            self._sum_bytes_photos = sum(photo.bytes for photo in self.photos())
+        total = self._sum_bytes_photos
 
-        total = sum(photo.bytes for photo in photos)
+        if recurse:
+            if self._sum_bytes_albums is None:
+                self._sum_bytes_albums = sum(a.sum_bytes(recurse=True) for a in self.children())
+            total += self._sum_bytes_albums
 
         if string:
             return bytestring.bytestring(total)
diff --git a/etiquette/photodb.py b/etiquette/photodb.py
index 3e30732..750f56c 100644
--- a/etiquette/photodb.py
+++ b/etiquette/photodb.py
@@ -1410,6 +1410,17 @@ class PhotoDB(PDBAlbumMixin, PDBBookmarkMixin, PDBPhotoMixin, PDBTagMixin, PDBUs
         if isinstance(thing_id, thing_map['class']):
             thing_id = thing_id.id
 
+        cache = {
+            'album': self._album_cache,
+            'photo': self._photo_cache,
+            'tag': self._tag_cache,
+        }[thing_type]
+        try:
+            val = cache[thing_id]
+            return val
+        except KeyError:
+            pass
+
         query = 'SELECT * FROM %s WHERE id == ?' % thing_map['table']
         cur = self.sql.cursor()
         cur.execute(query, [thing_id])
@@ -1417,6 +1428,7 @@ class PhotoDB(PDBAlbumMixin, PDBBookmarkMixin, PDBPhotoMixin, PDBTagMixin, PDBUs
         if thing is None:
             raise thing_map['exception'](thing_id)
         thing = thing_map['class'](self, thing)
+        cache[thing_id] = thing
         return thing
 
     def get_things(self, thing_type, orderby=None):