My Dad was Deputy Head of the High School I attended. I remember him having on his (very untidy) desk something he had received as a gift. It was stuck to the desk and consisted of a triangular piece of wood with a brass plaque on it. The words inscribed simply said,
A cluttered desk is a sign of genius.
It’s always stuck with me. I remembered it the other day, so whipped up a banner in Publisher, got it laminated and have stuck it to the front of my teacher’s desk. Ironically, the above picture was taken at the beginning of a new term when my desk is actually at its tidiest… 😉