Virtually everyone knows you can click the yellow pill button in the upper left corner of a window to minimize a window in Mac OS X, but there are actually a few other ways minimize windows faster than that. The first is my preferred method which is a quick keystroke, and the other lets you double-click anywhere to send a window hiding.
The Minimize Window Keyboard Shortcut: Command+M
By far the fastest way to minimize windows is the Command+M keystroke, which works anywhere with the currently active window. You can modify it by adding an Option+H as well to minimize and hide everything including the currently active window with Command+Option+H+M
Double-Clicking Title Bars to Minimize Windows in OS X
Longtime Mac users should be familiar with this feature which lets you double-click anywhere in the titlebar to minimize a window. To do this in OS X, you’ll have to enable the feature in preferences:
- Open System Preferences and click on “General”
- Look under the scroll bar section and check the box next to “Double-click a window’s title bar to minimize”
This feature has been around in various forms since the early days of Mac OS 7, 8, and 9, long before OS X came along.
(Via OS X Daily.)