Cameron Silver, co-owner of the influential vintage boutique Decades: "I was spending $45 to dry clean my Loro Piana sweaters at Effrey's. Now I wash them by hand with a squirt of Citrus Magic Fine Fabric Shampoo. I wash them in my bathroom sink in lukewarm -- almost room temperature -- water. Toss the sweater in the sink for a bit, then rinse the sweater, but never wring it. Roll it in a beach towel to absorb water and then place it flat on a dry towel on a flat surface to dry. I sometimes change the towel halfway through the drying process and turn the sweater over too.