diff --git a/django_lostplaces/lostplaces/common.py b/django_lostplaces/lostplaces/common.py
new file mode 100644
index 0000000..1b438f9
--- /dev/null
+++ b/django_lostplaces/lostplaces/common.py
@@ -0,0 +1,11 @@
+def get_all_subclasses(cls):
+    '''
+    Gets all subclasses recursively, does not contain
+    abstract classes
+    '''
+    subclass_list = []
+    for subclass in cls.__subclasses__():
+        if not subclass._meta.abstract:
+            subclass_list.append(subclass)
+        subclass_list += get_all_subclasses(subclass)
+    return subclass_list
\ No newline at end of file