MoneySavingMethods just posted a great article about using the economic stimulus deals at Kroger, Sears and Kmart. I'm thrilled to hear that you can use credit cards to get extra bang for your buck! She also lists stores in the Kroger family that are also giving the 10% deal.
I know, you'll probably shoot me for using a credit card, Dave Ramsey friends! But we pay it off every month and earn an extra 3% on all of our purchases. We also use the credit card software to easily track our expenses. So if you can be disciplined, keep using that card! If it's a stumbling block to you, cut it up!