Neilsen Homescan is once again accepting applicants. You sign up and if you are selected, you are sent a scanner and you simply scan everything you buy. You then upload it to their site. In turn, you earn points that you can redeeem for free items such as gift cards and other rewards. I love this one because you make money just for doing what you normally do – shop! These suvey sites fill up quickly as soon as they open for applicants, so get signed up here if interested.