I've long dreamed of dumping the contents of my Byzantine Documents sub-folders into one, giant, unorganized pile, relying on Spotlight and ad hoc smart folders to find whatever I need. I've managed to do this with my email to great success, but I've held off on the Documents folder because I'm afraid it would require too much work renaming files, setting metadata, etc, defeating the whole purpose.

Has anyone done this? Did you come up with a nifty naming convention, or do you just toss whatever you have in the junk drawer, renaming only if there is a conflict?