Chapter 26 of "How to Stop Worrying" by Dale Carnegie is titled "Four Good Working Habits That Will Prevent Fatigue and Worry".
First up on this list is to: Clear your desk of all working papers except those relating to the immediate problem at hand.
To modernize this for today’s world, imagine things like email and tasks instead of working papers and imagine your desk and your desktop on your computer/laptop/tablet/phone as your desk.
This has two positive results.
First, there is something about having a clean and clear workspace.
Everything on our desks carries with it a little bit of mental weight. If your desk is covered, it carries a lot of mental weight.
Second, there is magic to being able to focus on the task at hand. Having only the information relevant to your most important task in front of you immediately makes you much more productive.
Take a look around today.
Is there a mess?
Is there clutter?
Is it overwhelming and demoralizing to look at your work area/inbox?
Spend a few minutes before you get started today clearing things up. Give yourself a fresh start.
Make it a great day.