OS X might seem simple — but it's an absolute powerhouse if you know how to use it.

Some of the easiest ways to get the most of out of Apple's desktop operating system are hidden in plain sight: Keyboard shortcuts.

Knowing the right keyboard shortcuts will save a second here and there — and over the course of a week, or a month, or a year, it adds up dramatically.

Here are 13 of the most useful keyboard shortcuts that will save you time on the little things so you can focus on the big things:

1) + Space — Bring up 'Spotlight' search

Apple improved its search in the latest version of OS X.

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