I don't, and in some cases I think labels are really misleading. As a reformed northener I have a nice, small collection of cashmere sweaters. Many have labels that suggest dry cleaning, but I think that handwash in cold water without any detergent is the best way to clean them (unless they are filthy or smelly, in which case you'll need to either to dry clean them and pray or use a gentle detergent [hah.] or shampoo). The main thing with them is to avoid any friction, which is what makes detergent and shampoo a bit problematic. I "fulled" a couple of nice sweaters pretty badly while learning to wash them properly. I don't machine dry much of my nice outer clothing, and even there I'm careful, use low heat, and often take things out while still damp (which also helps in ironing some things), and finish the drying in air. Some clothing can stand up to full sunlight when line dried, some can't. I recommend sun-drying for clothes that can take it, as it leaves them really fresh, but discretion is the better part of valor here, as with all cleaning techniques. Bad drycleaners can, and will, ruin just about anything.