Having a bottle opener on hand is a wise move.

Having one attached to the bottom of your flip-flop or on the back of your iPhone case is not.

Thankfully, the Brooklyn-based leather goods and accessory shop Billykirk made the perfect bottle opener. It's ultra-thin, made of stainless steel with brass hardware, and will age and change gracefully over time, acquiring a unique patina.

Don't be the guy with a cheesy hotel gift shop bottle opener or a novelty option. Go with one of these instead. At just $25, acquiring is pretty much a no-brainer.