Start making room in your wallet for yet another card. Walgreens has joined the long list of retailers that are offering rewards, benefits and savings for loyal customers. You don’t even have to carry the card — just tap in your phone number at the register and you get your rewards. Balance Rewards lets you earn points on selected purchases in-store and online. The more points you earn, the bigger your reward (obviously). For example, 5,000 points = $5 and 40,000 points = $50 — money you can spend on most items at Walgreens, naturally. For details, go ONLINE.