Open a Finder Window with the App Switcher
If you don't have any Finder windows open and want to switch to the Finder and open a window in one fell swoop, bring up the app switcher with Command-Tab and tab over to the Finder icon. While still holding down Command, press the Option key, and then release the Command key. You're switched to the Finder, with a new default window open for you.
Outfitting you with the knowledge you need to work with photos, music, movies, and publications.
QuickTime Player 10.4 in Yosemite enables you to make movies of onscreen actions on iOS devices. Michael Cohen explains how it works.
Set up short abbreviations which expand to larger bits of text,
such as "Tx" for "TextExpander". With the new custom keyboard,
you can expand abbreviations in any app, including Safari and
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