Here is one for a brownie mix. I have also included a link to a recipe online for easy bookmarking:
You can make your own taco mix! For this, I would recommend buying the spices at a bulk food store. Bulk food stores usually sell spices very inexpensively. The price range on spices can be pretty big between regular stores and bulk food stores. You also know exactly what goes into your mix and can eliminate MSG (mono-sodium glutamate) and things like that.
Instant cocoa for those cold winter months! There are a lot of different recipes for this, some with powdered sugar and creamer and some not. You can experiment and see what you like best!
There are so many money saving recipes at your fingertips! Anything you can thing up can simply be looked up online and it will likely be right there. I hope you have fun with these and save some money to boot!