Just ran across these 10 recipes today: http://www.tasteofhome.com/recipes/cook ... ng-mixes#1
Don't think of them as just for baking. There are recipes for biscuits, dumplings, pancakes, waffles,etc.
There is even a recipe for a gluten-free flour mix among them.
Created from various sources by Taste of Home magazine, these recipes are tested before they are ever added to their website.
I have yet to find a bad recipe from this particular website.
So, if you're into making your own mixes, this website might be one for you!