1) You could always donate the gatorade and tea powders to your local pee wee football group if you don't really want to drink it. Or your local Habitat for Humanity, for them to have for their volunteers when it starts getting hot outside. Tax deduction.
2) Do you like three bean salad? That would help you use up the canned beans and give you a salad alternative.
3) Cake mixes - if you want a change from cake, you can make the bars where you mix the cake mix w/ an egg and a stick of melted butter, pour in the pan, then mix 8 oz cream cheese and box of powdered sugar and spread over then bake. Fabulous! Plus I've heard of people making cookies form a cake mix (never done it myself).
4) canned clams and crab - make some kind of seafood chowder? Or stuffed mushrooms for something fancy (love them!).
EDIT: oops! I didn't see your mention of the 3 bean salad in your other thread. Ignore!