We may earn revenue from the products available on this page and participate in affiliate programs. Learn more › In college, the only item I needed on my keychain—aside from my house keys!—was a ...

We’re big fans of the multitool and the pocketknife, but another useful tool to keep handy is a bottle opener. We’ve found five bottle openers that are small enough to be unnoticeable on your key ...

When it comes to things that live on your keychain, smaller is pretty much always better. So a bottle opener that weighs basically nothing, and as is as small as your fingernail, sounds like a pretty ...

Carrying a bottle opener on your keychain has obviously useful applications, but it also means adding considerable bulk to your keychain and pocket. A user at DIY site Instructables solves this ...

The Insider Picks team writes about stuff we think you'll like. Business Insider has affiliate partnerships so we may get a share of the revenue from your purchase. Everyone carries a key ring. Along ...