In real estate, location is everything, and the bottom corners of the iPhone lock screen are the prime spots, each an easy thumb press ... shift to the right to make room). Our phones carry ...

The card's rewards structure isn't the easiest to remember. But its useful bonus categories, flexible rewards and outstanding welcome offer make it a top contender among cash-back cards.

Earn 2 miles per dollar on purchases. Redeem miles (at 1 cent apiece) for credit on your statement against any travel purchase, with none of the restrictions of airline cards.