one which i stumbled upon by accident is pressing option when you're in a menu. e.g the apple menu at the top of the screen: If you press option while you're lo

one which i stumbled upon by accident is pressing option when you're in a menu. e.g the apple menu at the top of the screen: If you press option while you're looking at this menu certain menu items change - in this case about this mac becomes system profiler. Also if you press shift in this situation force quite becomes force quit active application.