I was mowing the lawn yesterday, and I was thinking to myself, Man, this really stinks. Why isn't there an electric programmable computer lawn mower to do this for me? Then, there's always that time when you can't find something valuable that was lost, and you wish for those GPS X-ray-vision goggles that would lead you right to it. So, what inventions do you need most to guide and help you in this world of today?