I've recently joined Ebates.com as a semi-regular user. Anytime I need something that I wouldn't regularly order from Amazon (since we have an Amazon Prime account and get free shipping), I go to Ebates to see if I can find what I want and get some cash back for making that particular purchase. They have agreements with big name stores such as Old Navy, Victoria's Secret, Home Depot, ProFlowers, FTD, Kay Jewelers and more!
So far, I've gotten stuff from Victoria's Secret and ordered flowers for a friend through FTD.
If you're interested in Ebates, please check out this link and I can get $5 if you join and make a purchase!