Every time there's a new top post in /r/EarthPorn it will get the file and add it to your Dropbox in your Desktoppr folder. If you set your computer's wallpaper to be every picture in that folder on your computer (setting it to shuffle), then you will very quickly have a huge selection of beautiful wallpapers. It is designed to work with Desktoppr (http://desktoppr.co) - which sync wallpapers you like on their site to that same folder, with Dropbox. (Inspired by this recipe: http://s.zbee.me/...