This may be old news to some, but I have mentioned it to alot of people and they think I'm nuts, until I show them. This is a trick that my father told me years ago while I was bent over looking for some small "precious" screw that had ended up on the floor while I was trying to put something back together in our shop. He told me to put my ear to the ground, then scan the floor to look for the screw. Sure enough, within 5-10 seconds I had it in my sights and was quickly retrieved and put back into it's normal use. It's a little more work to get down and back up again, but it saves the back from the excessive amount of time spent bent over trying to find whatever. In fact, you'll be amazed at the amount of crud that is on a floor. It's almost like a whole different universe down there.