How many of you use magnetic trays? Ive got several of them, and use them everyday. The big 4 magnet one i have is great for rebuilding carburetors. I also find them useful for soldering. You can pop a "helping hands" in a two magnet tray for an awesome soldering station. The solder wont stick to the tray, and it keeps you from burning the interior of a vehicle. If you have bad eyesight (which I dont..yet), they can really help you keep track of very small parts or screws. 



I think Northern Tool sells one like it though. Napa has a similar one, but its twice the price, and smaller, and not any better.