Originally posted by mad4themouse
Right now, I would have to say that MyPoints is probably paying the best and quickest. I've gotten $75 in webcertificates this month with one more $25 webbie on order and I'm close to cashing in again. The webbies have been arriving about 7- 8 days after I redeem. Just look for the MyPoints/Tupperware threads here to see how to rack up quite a few points with very little effort.
If you don't like or want webbies, MyPoints also offers some nice GCs (like Rainforest Café and Kmart). You're bound to find something that you can use.