One time-saving feature is Hotkeys (or keyboard shortcuts); they offer a powerful tool to get the result instantly - with a single keys combination. Smashing Magazine has collected the most useful of them - for the most popular applications out there. Some shortcuts are trivial and well-known, but hopefully not all of them.

This post, http://www.smashingmagazine.com/2007/07/20/developers-alarm-200-hotkeys-to-boost-your-productivity/, covers the most useful keyboard shortcuts for essential software applications users and web-developers can/should use on a daily basis - OS, Browsers, Music Players, Communication Tools, File Management and Coding. You will also find references to related resources - there you'll find more specific shortcuts for your needs.
Please note...

• that a global hotkey can be used only by one application at a time. Some defined hotkeys might not work properly used with different active application windows.
• Mac OS users should use 
  • Cmd instead of Ctrl and
    
  • Option instead of Alt.