A screensaver and wallpaper management tool.
Randomscreen deluxe is both a screensaver runner and a wallpaper changer. You can use it to customize the running of your screensaver and to change your desktop wallpaper.
Your favorite set of screensavers can be run in a sequence or randomly and you can chose to run different screensaver(s) at different times. Screensavers can include Flash and photos (JPG/BMP/GIF) and can be accompanied by music.  
With the Wallpaper changer you can select different wallpapers for different days.