Microtask sites pay you cents to do extremely simple and quick tasks, and pay you dollars to do more complex tasks. A quick way to earn some extra cash!
If you don't mind answering questions (which are usually boring), then you can easily make up to a few bucks an hour doing surveys!
Do you regularly make searches on Google, Bing, Youtube, Amazon, or eBay? You can get paid for doing what you already do! You can only earn a few dollars a week at most, but if you already do these searches anyways then why not get paid for them?