Exposé quick tip

Does Mac OS X Exposé ever just stop working on you for no apparent reason?  It happens to me regularly.  Haven’t been able to find out why this happens yet.  BUT, here’s how you quick fix it:

Open a terminal and use:

killall Dock

Exposé should work again.  If you keep a terminal open all day like me, you can reserve a tab just for repeating this command again and again.  Sigh.