OPie addon

I've recently tried a new addon called OPie. I read about it in WoWInsider Addon Spotlight. I'm very happy with it so far and recommend it!

"OPie is a radial action-binding addon for World of Warcraft.
The addon allows you to bind groups of infrequently used actions to a ring that appears when you trigger it using a hot key / mouse binding."

It lets you hide things which aren't used that frequently and minimizes your UI clutter.