Liquid Information is one of those time-saving utilities that you can't live without once you start using it. Advertised as a "Swiss Army knife of text," the OS X utility lets you select a string of text in any app and search, look up, translate, calculate and share that information quickly. All you have to do is select your text and hit command-@ to pull up the list of available actions in Liquid Information.
Keyboard shortcut gurus can get fancy with commands like "command-shift-2 r,w" which will automatically search your selected text on Wikipedia or "command-shift-2-t,e,g" which will translate your text from English to German.
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