As a student, it's hard to find a work that involves bitcoins. I'm in school 8-9 hours and when I go home, I would like a long rest. That is why, signature campaigns really gives me not much but enough to support my allowances every month.
When I have my free time. I find sites that are finding freelancers. Those who are needing not a too much technical writers or even story writers only. I earn few bitcoins there.
Sometimes, do some errands that my fellow bitcoiners want like, turn papers, then I get bitcoins in return or payment.