Sleek, convenient, and affordable, these phone wallets really have changed the game when it comes to how people carry around their cards. Nowadays, our phones are things that rarely leave our hands, which makes them such an efficient and convenient place to keep our IDs and other important cards (e.g. credit cards, Charlie cards, etc.). Their ready availability around campus is another definite plus—whether they’re being passed out on Housing Day, or being freely distributed at career fairs, it’s never too hard to get your hands on one.