TLC for your Mac...
The Single-click Trick to Declutter Your Mac’s Screen
by  Adam Engst |  Apr 3, 2017

Is your Mac’s screen cluttered with windows from different apps? Sometimes it’s handy to be able to see a couple simultaneously, but having too many apps visible is often distracting. There are a variety of ways to focus on a single app at a time, but here’s one of the easiest. Whenever you click on an app’s window or Dock icon to bring it to the foreground, also hold down the Option key to hide all the windows from the app you’re switching away from. Get in the habit of Option-clicking to switch apps regularly, and before long you’ll find that you can more easily focus on what you’re doing without distractions from other apps.