Windows only: Desktop wallpaper switching application Wallpaper Juggler not only chooses between random images—it also downloads beautiful desktop wallpaper for you. Using the application—which lives in your system tray—is simple, requiring first a quick trip to the preferences panel to add your local wallpaper folders, after which you can switch between wallpaper images using the Juggle Now option on the system tray menu, or use the automatic option to rotate to a new wallpaper on a set interval. The best feature of the application, though, is found in the Download Wallpapers option, which will automatically download high quality images from InterfaceLIFT and WallpaperStock web sites—and it will even grab the images that correctly fit your display resolution, making this a great tool worth a look for anybody looking to customise their desktop. Wallpaper Juggler is free and open source, requires no installation. For more high-quality images for your wallpaper needs, check out the best places to find multi-monitor wallpaper.