Powershell shortcut to changing screen orientation (Windows 7+ only)
If your screen orientation is standard landscape calling CO.cmd will rotate the screen display 90° counter clockwise to portrait.
Calling the script again will rotate the screen display 90° clockwise back to landscape.
To ease the use create a shortcut to CO.cmd on the desktop. Change the shortcut key to something unused (like [Shift]+[Ctrl]+[Alt]+[F12])