I love playing with new operating systems, and also love to experience the default behaviour that Those That Be have decreed are the New Best Thing. Up until now, I've always - be it Windows or Mac OS X - nuked my hard disk before installing, so it would be easy to see what the authors had in mind for my new desktop experience. Now I'm married, however, and my wife has an account, files and preferences set up it was too much of a hard sell.
But, from my point-of-view, I'd like to reset all the system preferences to what they would have been for a fresh install. Does anybody know an easy way to do this?