I usually take my tanks to be dry cleaned, but I worry about them until I get them back. Being as that I hate to worry, and I like to do things myself, I have found a product called Dryel which is supposed to allow you to dry clean garments at home in the dryer using a sheet which contains dry cleaning chemicals - the box also had a spray for tough stains. Anyone heard of this product? How does it compare to professional dry cleaning?