Want to become the coolest and most prepared person in any scenario? All you need is this neat keychain. No, it doesn't just open bottles when you've forgotten to bring a bottle opener. This one also ...

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 may receive a commission on purchases made from links. Loads of people carry a smartphone with them wherever they go, but there's at least one other thing that's just as — if not more — important: ...