Okay, so if you see a great deal and still want another discount on top of that, you can buy these gift cards and use them at checkout. Good for online shopping at Bestbuy, Lowes and Overstock etc.. I just bought one on RetailMeNot and used it on a Bestbuy purchase. I saved an extra 6% by doing this. It works and it will save you money. Click below to go to RetailMeNot’s gift card page.