Do you do DARPA stuff? You may know someone I know (not the person I already know that you know that I know).
Anyway, I'm a graduate assistant and I work at the farmer's market once a week.
The graduate assistantship gives me tuition waiver, stipend, and health insurance. The farmer's market work gives me some spending money plus free food. Otherwise it's just mooching off the wife for the 1.5-4 years it will take me to finish this stint in graduate school.