Get the Amex Blue Cash Everyday Card and you'll get $200 back after you spend $2,000 with the card in the first 6 months. You'll also earn 3% back on online retail purchases, 3% on gas and 3% on groceries, all up to $6,000 in spend in each category. And best of all, there's no annual fee! Get full details and apply for this extremely useful card here.