Here is a recipe from Mike Mills aka The Legend. Good all purpose seasoning.
1/2 cup paprika 1/4 cup salt 1/4 cup sugar 2 tbs mustard powder 1/4 cup chili powder 1/4 cup ground cumin 2 tbs ground black pepper 1/4 cup granulated garlic 2 tbs cayenne
Needless to say this is on the spicy side. This guy uses it on everything from bbq to devilled eggs, to popcorn. He runs a restaraunt in Memphis and says it's the most stolen item on his tables. I used it in my bbq sauce and it gave it a nice flavor!