bartending, crappy work (for most ppl) but part-time positions are plentiful. It does not bring in that much dough though.
I bartend on the side. Actually, you could say I flight instruct on the side. I've been doing it ever since I started working on my PPL. Anyway, I bartend in a pretty swanky establishment, and handing out my business card behind the bar has been pretty beneficial for me.
Is the money great? I guess not...I'm not making an MD's salary. But it pays the bills and my schedule is flexible.