diff --git a/apos/app.py b/apos/app.py
index c4ca3ee..0e09141 100644
--- a/apos/app.py
+++ b/apos/app.py
@@ -1,7 +1,7 @@
 from apos.extensions import app, api
 from apos.resources.coupons import CouponResource, CouponListResource
-from apos.resources.orders import OrderListResource, OrderResource, OrderActiveListResource
-from apos.resources.items import ItemListResource, ItemResource
+from apos.resources.orders import OrderListResource, OrderUserListResource, OrderResource, OrderActiveListResource
+from apos.resources.items import ItemListResource, ItemUserListResource, ItemResource
 from apos.resources.auth import Auth, Signup
 
 api.add_resource(CouponResource, '/api/v1/coupons/<int:coupon_id>')
@@ -11,6 +11,8 @@
 api.add_resource(OrderResource, '/api/v1/orders/<int:order_id>')
 api.add_resource(ItemListResource, '/api/v1/orders/<int:order_id>/items')
 api.add_resource(ItemResource, '/api/v1/orders/<int:order_id>/items/<int:item_id>')
+api.add_resource(OrderUserListResource, '/api/v1/user/orders')
+api.add_resource(ItemUserListResource, '/api/v1/user/items')
 api.add_resource(Auth, '/api/v1/auth')
 api.add_resource(Signup, '/api/v1/signup')
 
diff --git a/apos/models.py b/apos/models.py
index 7b0fcb1..5633dff 100644
--- a/apos/models.py
+++ b/apos/models.py
@@ -75,6 +75,7 @@ def serialize(self):
         item = {
             'id': self.id,
             'order_id': self.order.id,
+            'order': self.order.serialize,
             'user': self.user.serialize,
             'name': self.name,
             'tip_percent': self.tip_percent,
diff --git a/apos/resources/items.py b/apos/resources/items.py
index 1c5011c..b3f3557 100644
--- a/apos/resources/items.py
+++ b/apos/resources/items.py
@@ -9,11 +9,13 @@
 item_create_parser = reqparse.RequestParser()
 item_create_parser.add_argument('name', type=str, required=True)
 item_create_parser.add_argument('tip_percent', type=int, required=False)
+item_create_parser.add_argument('tip_absolute', type=int, required=False)
 item_create_parser.add_argument('price', type=int, required=False) # Why is the price false?
 
 item_patch_parser = reqparse.RequestParser()
 item_patch_parser.add_argument('name', type=str, required=False)
 item_patch_parser.add_argument('tip_percent', type=int, required=False)
+item_patch_parser.add_argument('tip_absolute', type=int, required=False)
 item_patch_parser.add_argument('price', type=int, required=False)
 
 
@@ -30,11 +32,21 @@ def put(self, order_id):
         order = Order.query.get(order_id)
         if order.deadline < datetime.utcnow():
             abort(422, message="The order is expired, so no items can be added")
+        if args.get("tip_absolute", None) and args.get("tip_percent", None):
+            abort(422, message="The tip can only be provided in percent OR absolute value")
         item = Item(order_id=order_id, user_id=get_jwt_identity(), **args)
         db.session.add(item)
         db.session.commit()
         return item.serialize, 201
 
+
+class ItemUserListResource(Resource):
+    @jwt_required
+    def get(self):
+        items = Item.query.filter_by(user_id=get_jwt_identity()).all()
+        return [item.serialize for item in items]
+
+
 class ItemResource(Resource):
     @jwt_required
     def get(self, order_id, item_id):
@@ -62,6 +74,7 @@ def patch(self, order_id, item_id):
         if item.order.deadline < datetime.utcnow():
             abort(422, message="The order is expired, so no items can be modified")
         item.update(args)
+        if item.tip_absolute and item.tip_percent:
+            abort(422, message="The tip can only be provided in percent OR a absolute value. Take care that not both are set in the db.")
         db.session.commit()
         return item.serialize
-
diff --git a/apos/resources/orders.py b/apos/resources/orders.py
index 31163e3..7cb18eb 100644
--- a/apos/resources/orders.py
+++ b/apos/resources/orders.py
@@ -51,6 +51,13 @@ def get(self):
         return [order.serialize for order in orders]
 
 
+class OrderUserListResource(Resource):
+    @jwt_required
+    def get(self):
+        orders = Order.query.filter(Order.owner_id == get_jwt_identity()).all()
+        return [order.serialize for order in orders]
+
+
 class OrderResource(Resource):
     @jwt_required
     def get(self, order_id):