Messy desk or tidy desk?

"If a cluttered desk is a sign of a cluttered mind, of what, then, is an empty desk a sign?" —Albert Einstein

How does your desk look -- crowded or bare?

Read more about the psychology behind your desk at http://www.spring.org.uk/2013/08/tidy-or-messy-desk-which-is-best-for-the-mind.php

How are messy desks useful?
How can a tidy desk help us?
What are the main conclusions of the reasearch?