Some people love working amidst chaos; anything too structured makes them feel inhibited and their creativity is stifled.
I'm the opposite.
When everything is not in its place (oh, and everything has a place), I feel out of control and scattered, and become easily frustrated with my projects. Add to that the fact that I have about 1.5 square feet of work space and at any given time am juggling anywhere from 27-32 projects, and well, uh, I get frustrated quite often.
I guess I know what I am doing tomorrow...
(Organize, purge, straighten, put away, clean.)