Wells Fargo presently is offering 5% cash back on the first $12k of combined grocery, gas, and drugstore spending for the first 6 months plus 0% financing for the first 12 months on their Platinum Rewards card. Full disclosure, I hit this card really hard twice when the spending bonus used to be uncapped and managed to fly under the radar, and am working on the capped bonus for my wife right now. If you do the grocery spend right, you can easily walk with $600 cash and interest-free financing for a year.