What part time jobs can I apply for that will not drug test upon hiring?

I reside in California (I know company policy can vary from state to state?) and I do not do any hardcore drugs. I only smoke marijuana. In my defense for those who do not agree with the pro marihuana sentiment: I am not a “pot head” or anything of that nature. I smoke in my free time and do intellectual things (like write, paint, hold interesting dialogue, etc.) In fact, I am a very successful individual. I am currently looking for a part time job (I am thinking Starbucks, In-N-Out, etc.) while I finish up my post baccalaureate work. I am trying to find out where I can apply where I will not have to worry about drug testing.

Does anyone have any solid leads? I appreciate your answers!
-And please don’t suggest for me to stop smoking, because that probably won’t happen.