I was going to say “pole dancing” until Only Mostly Dead informed me that you’re a dude. So I’ll downgrade to just plain old stripping. Not as fun as pole dancing, let me tell you, but still a good way to pick up some cash.
An easy one if you work in a place where it comes up, is notary public.
Easy to get. Depends on the state I guess, but some allow you to charge something like $20 just to check that the signature matches the ID and keep a simpl log for record keeping.
The Justice Department, relying on the Wire Act, has always maintained that online poker is illegal, but the highest appelate court that’s heard the case ruled that the Wire Act didn’t apply to online gaming. There is also a ruling from the WTO that holds that any attempt by the United States to ban internet gaming is a violation of NAFTA but since the complaintant was Antigua and the only remedy at this point is economic sanctions, the US has chosen to ignore that ruling. That abortion of a bill that just passed in the dead of night doesn’t ban internet gaming per se. It does make it illegal for American banks to transfer funds to offshore poker accounts but since there are already third-party money transfer sites like Neteller that provision is meaningless. And, not that I’d ever suggest such a thing, I’m told that if an American player changes his address in the poker site’s database to a Canadian address the sites will still accept direct deposits from the American banks. Many of the publicly traded online gaming sites announced that they were pulling out of the US market but, oddly enough, the airwaves are still saturated with ads for the dot-net “poker school” sites that are nothing but gateways to the real money dot-com sites.
Sorry, didn’t mean to hijack. Carry on.
Well, in Margaret Cho’s book **I’m The One That I Want ** she talks about working for phone sex lines that are used to teach foreigners english. You say naughty things but with correct grammar and such, and they have to respond accordingly. You don’t even talk directly to them sometimes, it is prerecorded! 
Seriously though, the tutoring is probably a good idea. Also, when I needed extra cash I got a part time job at the craziest place I could think of just so it would stay entertaining. I sold sex toys and earned commision for it! It was super awesome. Find a part time job that is interesting or different from what you normally do. It will help you meet a whole new selection of people and will give you some amazing stories to tell.