As seen on YouTube. This tutorial site example shows a wish list functionality where Members can save items to a list by clicking a button. This single button is connected to a piece of code that can also remove the item from the Members list. The code is specifically written to perform a query in the database to make sure that no duplicate item exists for the Member before saving item to the Members Database. To get the code for this tutorial please follow the 'Purchase Link' section below. The code is free.