Picture this: You're watching a nail-biting game, enjoying a beach bonfire, or chatting someone up at a party when you realize there's not a bottle opener in sight for your beer. It's ...

The addition of a bottle opener on the bottom is the final touch to make sure that you'll never want for anything so long as you have your koozie and a beer (or soda) to fill it.

Push a beer bottle into the fleshy part of the forearm, and apply a lot of pressure while you're at it, before twisting to pull the cap up and off. You'll know you're not pressing hard enough if 1 ...