I use it for cooking and as a regular thing to season foods with. I had several shakers of different peppers but am currently down to congo trinidad and orange hab powder. They sit right next to my salt and pepper shakers.
a nice easy way to just add the heat without the whole process. anything i'd put black pepper on (which is almost everything) I'll put chili pepper on.
I agree with all of the above and then some. I sort of do what Patrick does. I have them easily accessible and continue to find new things to add heat to.
I used to get some powder from my friends that his dad grew and made that had habaneros, jalapenos, cayennes, and I think something else that was perfect on pizza.