Brownie Mixes (30 cents each)

So simple, so easy. Not just frugal but cuts out the unknown ingredients.
1 Cup Sugar, 1/2 Cup All-Purpose Flour, 1/3 Cup Cocoa, 1/4 tsp Salt, 1/4 tsp Baking Powder. 
Put mix in plastic bags or mason jars.
At Baking Time Add: 2 Eggs, 1/2 Cup Vegetable Oil, 1 teaspoon Vanilla.
Bake @ 350 degrees for 20-25 minutes in an 8x8 or 9x9 pan.