If you can spend all of your per-diem and still make ends meet off of flight pay, good on ya. But, those of us pulling in min guarantee on first year FO pay need a little extra cash to throw around to pay the bills. Sad but true.

Back to the main topic, my girlfriend bought me a small hot pot cooker that I bring along with me. It's basically a pot that you plug in that has an electric filament at the bottom. It fits in my bag easily, and I typically bring mac and cheese, tuna, soup, etc. that I can just heat up in the room for a hot meal. Works great!