7. Junk Mail

If you’re like most people, you probably get dozens of spam emails on a daily basis that fill your junk folder. Deleting them all can be a real chore – and guess what? Now you have a very good reason not to.

SBK Center (Small Business Knowledge Center) will actually pay you for your junk mail! They’re a market research company that cares about studying different types of marketing material and they accept direct mail and emails, while giving you prepaid credit cards or gift cards as a reward. $20 every couple of months is what you can expect – and while it’s not much, it couldn’t be easier to get.