In a few years, after I complete my PhD in Biology, I think I'd like to work at a weekend job for about 10 hours per week in addition to (hopefully) full-time work in my field in order to pay down college debts and build my savings. Does anyone have any ideas for jobs I might look at? (I like to be prepared.) Other than my science background, I've tutored, worked in food service, and have some computer repair/programming experience. I was thinking that maybe I could pick up some sort of certification such as phlebotomy or medical coding, or go back to pizza delivery.