The Windows wallpaper is a simple and fun way to personalise a computer but it isn't that easy to change them on a regular basis. Wallpaper Juggler is a clever utility that will cycle through a folder of images on a regular basis.As some useful extra features, it can tell Windows to resize the image ifit won't fit at the current resolution. If you are short on suitable wallpapers it can also download more from Interfacelift or Wallpaperstock.