We all know you can use Expose' to show all of the open windows on your desktop. However, you can also do an expose' effect on the currently selected app, and it's respective windows. It's a great way to see what windows are open for just one application. A great feature though is to be able to cycle through the applications, and OS X Tiger makes it easy. How to do it: Be sure you have a bunch of windows open, so you can see the full affect of this. Now, press 'F10', and it will show you all of the windows open for the currently selected application. Now, to cycle through each app, and it's associated windows, simply press 'Tab'. When you find the app you want, press 'F10' again, or just click on the window.