These handy little gadgets are pretty amazing. Going in the boat, to the beach, or just out for a night of oysters and booze? Stick this adhesive cardholder to the back of your smartphone and carry your ID and cards inside.
Oh, and pro tip: put your phone wallet-side up on your local oyster bar to earn instant street cred with the head shucker.
3M Adhesive backing securely sticks to your phone and doesn't leave any residue when you remove it (why would you do that though?)
It can hold up to two cards or about 6 business cards