Sign up for the Blue Sky from American Express card and get 7500 points after you spend $1000 in the first 3 months, which is good for a $100 statement credit towards airfare, hotel stays, and other travel. You earn 1 point for every $1 you spend, and every time you accrue 7,500 points, you get another $100 statement credit. The points don't expire, and there's no cap on how many you earn. There's no annual fee. Plus, you get 0% APR for 15 months (regular APR variable 17.24%-22.24%).