I just found a way to save more when buying on line from REI, Sierra Trading, and Performance Bike. I signed up for a free UPromise account and if I shop via link from their site I get additional money back depending on the store.

Check it out, I don't work for any of the companies. It's free, and you do not have to put the money into a college savings plan if you don't want. Upromise is paid by the companies for sending shoppers to their sites. You can use any credit/debit card you want.