Outstanding idea

It's ideas like this that really piss me off - sure, it's genius, but why in the hell did I not think of it?

From Uncrate:

Why carry around a separate bulky keychain when your key can be the chain? The Split Ring Key ($7/2-pack) is a blank that can be cut by any key cutter to fit KW1 or SC1 keyways, but featuring a ring at the top for connecting the rest of your keys, letting you get rid yourself of yet another unsightly pocket bulge.

This little beauty will increase your left pocket's real estate three-fold. Buy here.