I was thinking about how you can kill the Dock while minimizing to have a live genie effect window (see Have fun with a Genie Effect minimizing glitch). It occurred to me that you might possibly be able to do the same thing with Exposé and end up with live windows that were smaller than normal. Well, you can. The functionality of the resulting windows can be a little strange, but it definitely does work and might be useful in one or two instances.
Open several windows, one of them being the Terminal. In the Terminal, type:
sleep 5 && kill `ps aux | grep Dock.app | grep -v grep | awk '{print $2}'`
Now hit the Return key and then press F9, and wait. In five seconds, your Dock will respawn and you will have tiny windows that you can interact with. If anybody actually finds a useful application for this I'd love to hear it.
Mac OS X Hints
http://hints.macworld.com/article.php?story=20041112214838704