Sallie Mae, who is known for their student loans are offering a rewards credit card. This card currently offers a 5% cashback for all grocery and gas purchases up to $500 a month and 5% back on books up to $1,000 a month. So if you spend the total $500 a month on combined purchases of gas and groceries then that's an extra $25 bucks back in your pocket and if you do happen to spend $1,000 on books then that's an extra $50 a month!
Also when you sign up and spend a total of $500 in the first 90 days you receive a $100 credit. Here is the details straight from their pricing and terms page :
Sign up today here at