People say that you should not take shortcuts in life, but when using my Mac I can appreciate a great shortcut that makes my work easier. Your F 1 to F 12 keys are fast and easy ways to change settings on your Mac without allot of fuss, but what about a shortcut to the shortcut?
Here is something you should keep in your mental arsenal when wanting to change master settings on your Mac. Adding the Option Key to the Function that you are trying to toggle opens its respective preference pain and tab within System Preferences. This proves useful when you need to change sound schemes, update video displays or a host of other settings easily.