If you have a large collection of wallpapers but can't be bothered to change it, Craig's Random Wallpaper Changer is the tool you need.
Craig's Random Wallpaper Changer has no complicated options or configuration settings. In fact, it doesn't even have a graphical interface. To use it, all you have to do is copy the Craig's Random Wallpaper Changer EXE file into your photo directory and double click on it. The desktop wallpaper will be immediately updated with one of the images in that folder.
Having no configuration menu, you'll be wondering how you can set Craig's Random Wallpaper Changer to run automatically and change the wallpaper every time you start Windows. In that case, simply create a shortcut to the EXE file and place it in the Startup menu and you'll get a new paper every time Windows launches.
Craig's Random Wallpaper Changer is probably the easiest way to load a new wallpaper automatically, though in my opinion it lacks some basic functions like the possibility to schedule wallpaper changing according to a certain period of time.
If you're searching for a dead simple wallpaper changing tool, look no further: Craig's Random Wallpaper Changer is your app.