2300+ Homemade Dry Mixes ~ this is the motherload of all DIY mixes on the web! These are broken down into 31 categories and include hundreds of "convenience" mixes like cake mixes, taco seasonings, copycat recipes... wow!
Haven't tried this, but from another website: 1/2 c mayonnaise, 1/4 c yellow mustard, 1/4 c honey, 1/4 tsp black pepper, 1/2 tsp salt, 1 tsp garlic powder. Mix all together. Keeps for 1 week in the refrigerator. It is very tasty.