Some time ago I worked for a company with a clean desk policy that was strictly enforced. Since then I've come to believe in the idea and generally stuck to it. Today is action day. That is, everybody is running around throwing stuff that is no longer required out. This is all going on around me. So far, the winning junk is a listing from 1988. It's all going on around me because I don't have anything to throw out. That's not "I've decided I need all this" it's "I don't possess anything that can be thrown out".
The downside, of course, is that I have to work while everybody else is pretending to be dynamic and ruthless.