For my desktop wallpaper I have been using an application called Wallpaper Changer that is a Powertoy for Windows XP. It will change the wallpaper periodically (you can set the change interval) using a folder of pictures that is on your computer. I originally downloaded it from AlisonAngel's message board. I have been using a folder filled with pictures of Alison for quite some time, so if you think YOU'RE getting lost in your wallpaper...just know that I drift off into Lalaland every so often...lol!