If you find yourself in need of self rising flour and you don't have any here's what you can do:
Mix together 1 C all purpose flour, 1 1/2 tsp baking powder
and 1/2 tsp salt.
This will give you 1 C self rising flour.
I don't usually have self rising flour in my pantry since I don't use it that often. This is a good substitute for those random recipes that call for it.