My first real job was at Barnes and Noble. It was great, but I don't think I appreciated it at the time.
I've also worked at 3 different camps. Yes, I'm that kind of person.
The crappiest job I've had is house cleaning. The lady was into all of this organic hippy crap that didn't work. I was like srsly, gimme some Comet and 409!!! I worked there for a few months, I think.