8. Tutor
Usual Rate: $10 – $15 an hour
Someone somewhere will always need help with schoolwork – and that someone could be your source of extra dough. For a few hours a day, or on weekends, turn your book smarts into an earning opportunity by working as a tutor. The secret to prospering in this business is a word of mouth, so make sure that every client is happy and they’d be more than happy to endorse you to other students.