A few months ago, I posted about fiverr where you can earn $5 for various services of your choice. I have had some luck with fiverr so far. I've been paid to do a few reviews on this blog, and a few other gigs as well. They changed their policy so that there is no payout minimum and you can cash out whenever you like.
There are a few other websites like this that I've found. TenBux works the same as fivver, except that you can offer services for both $5 or $10. Their minimum amount is only $8 and you get paid via paypal. For every $5 gig you do, they take .50, and $1 for every $10 gig.
Buxerr works the same way as TenBux, and the minimum cash out amount is $4. They do take 20% of each gig.
GigMe5 lets you offer services for $5, $10, $20 and $50. You do have a 14 day wait for the funds to clear before you can withdraw them and there is a minimum of $30 before you can cash out.
If you think about it, you can post all kinds of services or "gigs" on each one of these websites. It certainly can't hurt and you just might make some money along the way!