Module 2 · Lesson 3
The mistake most people make is treating the desk as storage. Everything that lives on it is competing for the same attention you are trying to give one task.
So the rule is one surface, one job. If the thing you are about to do needs three objects, only those three objects are allowed to be in front of you.
Everything else goes into a single box, not a filing system. A filing system is a second task, and you will not do it.