If you've never heard of Cashcrate, then I can tell you that you've left a lot of money on the table. Working with Cashcrate is one of the easiest ways to make money online. Just check out their forums, and you'll see how much they earn just by filling in a survey or completing other offers on the site.
Basically, Cashcrate is a site where, as mentioned above, you can earn money by completing surveys, testing software, ..., each time you complete an offer you get paid. You just need to reach the $20 payout minimum and you'll have a check mailed to your mailbox in a couple of