Here’s a simple one to wind up your colleagues. Many Windows PCs respond to the keyboard shortcut Ctrl+Alt+arrow to change the orientation of the screen; ‘arrow’ meaning one of the 4 arrow keys on the right-hand side of the keyboard. Note, it doesn’t work on all PCs, as some graphics card settings overrule the shortcut… But if it does work, you can have a good laugh as people try to work out why their screen is sideways or upside-down!
