Place small portion desserts in the freezer.

There is no reason to eat an entire cheesecake but an entire cheesecake is much cheaper than buying a slice every few days. You know your habits and preferences! If you need something of an indulgence, find a way to stock it more cheaply. Take a cheesecake, divide it into portions, and wrap each portion to freeze. Now you can even cut calories by making the portions just a bit smaller; one thing at a time, though.