Have you tried out Offermatic yet? It’s a great way to save on just about anything! You link your credit cards to Offermatic (don’t worry, it’s “read-only” meaning they can see where you spend and they can apply a credit to your card. But no personal information is visible and your card will never be charged by Offermatic). Offermatic sends you rebate offers based on your shopping habits. All you have to do is activate them and then use one of your linked cards next time you make a purchase at the store! They will automatically apply your rebate when the charges clear on your account.
I have received $15 in Offermatic rebates so far! $10 from Amazon.com and $5 from Toys ‘R Us!