Kubuntu, and perhaps other KDE distributions, have a cool desktop effect called Wobbly Windows. People who have used Compiz Fusion in the fast will know about it, but others, perhaps those new to Linux might not know the pleasure of the "wobbly windows" desktop effect.

You enable wobbly windows and then you'll instantly notice something cool when you drag a window by the title bar, there's this cool physics applied to the window geometry. It just makes the window come alive and it moves like a piece of Jello.

Okay, it's hard to explain, so just watch the video below where you can see what wobbly windows is all about and how to easily enable this cool desktop effect on Kubuntu (and maybe other KDE distributions).