Shubb Guitar Capo

Pros: small, light, works well, replacement parts available, cool Company
Cons: takes a little learning to make it work perfectly on your guitar

Every guitarist needs a capo. It's the little device one uses to "fret" all strings at once, so you can play in familiar chord shapes up the neck. For example, if a given singer wants to do a G song in B-flat, she can capo 3, play as she normally would ...