I agree with everything Freezing says. I did the restaurant thing for a while and then worked at an FBO through college. If they have a flight school get friendly with the instructors and they'll likely help you out a bit by not charging for dual. Worst case, make friends with owners of aircraft on the field. Wash some planes, cars, whatever. Worst case you get to go for a few rides. I had quite a few students by the time I had my CFI by doing this.