I remember making a homemade capo with a pencil and a bootlace back in the day. Not pretty, but it worked.

Capos are really good imo, I use a capo all the time! Changing the pitch on the fly is pretty useful. And you can get some tone colours from a capo that you can't get so much normally. It's an interesting job to compensate for chords, keys and such but you learn to work with it.

And I second the guy who suggested a shubb capo, I use one of those, they're very good capos.