I just read an article in the paper about this new system that removes the mouse from your desktop. It has a detector on top of the monitor (level with your forehead) and you place a piece of reflective tape on your forehead. The system determines where the cursor should be based on what you are looking at. Keys on the keyboard are used for right-clicking, left-clicking, and double-clicking. You can also put the detector at keyboard level and put the reflective tape on your finger, they call that "ring mode". Does anyone here know anything about that system? Is it any good, or reliable at all?
Later in life you will be more disappointed by the things you haven't done than by those you have. So cast off the bowlines and sail away into the seas of opportunity.