RELOADING DASHBOARD WIDGET TRICK

Okay, although this one is more of a trick just for the sheer fun of it (because the onscreen animation is pretty cool), it actually has a practical side as well. Just click on an open widget in Dashboard, then press Command-R on your keyboard and the widget kind of twirls away (for lack of a better term) and then reappears. It looks cool, but beyond that it does actually reload the widget (as if you had just dragged it out from the Widget Bar), which refreshes any data that the widget calls upon. Try it once (although it's nearly impossible to do it just once, because the animation is cool enough that you'll have to do it a few times to get it out of your system). Note: Pressing this shortcut too much on one widget could cause Dashboard to crash (I'm being serious here).

Regular widget

Twisted widget