I was just looking through the Discover Website when I was paying off my bill and saw under ShopDiscover that they will give you 15% cashback if you click through them and use your Discover Card to purchase any Groupons. It is pretty good deal considering how many restaurants and other useless junk I buy every month through Groupon.

If you don't know what Groupon is, check it out below.

http://www.groupon.com