One of the best ways to save on groceries is to use a credit card that offers rewards for your supermarket purchases. These are the best cards that offer the best rewards for your supermarket trips. (See also: Best Cash Back Credit Cards)Bank of America® Cash Rewards credit cardThe Bank of America® Cash Rewards credit card offers 2% back at grocery stores and wholesale clubs, 3% back in the category of your choice: gas, online shopping, dining, travel, drug stores, or home improvement /furnishings, and 1% on other purchases. Click here to learn more and apply for the Bank of America® Cash Rewards credit card today! Click here to learn more and apply for the Blue Cash Preferred® Card from American Express today!