With the inclusion of "Inspector" windows in most Mac OS X applications, you're constantly jumping around between the different tabs in the window. This little tip will save you time as you'll no longer need to jump around from tab-to-tab! Here it goes:
All you have to do is hold down the option key whilst clicking on the tab you want.
And there you have it ... the simplest Mac 101 we've done yet. When you click on the tab you want, a new inspector window will appear with the tab you just clicked. You can open as many as you want! This works well in Pages, Keynote, and pretty much any application that supports inspector windows.