Today’s Please Explain is all about dry cleaning--how it works, what chemicals are used, and how it is becoming more environmentally friendly. We'll be joined by Wayne Edelman, President and CEO of Meurice Garment Care and past President of the National Cleaners Association. He is also the doctor of "Ask The Clothes Doctor" on Garmentcare.com. And Kim Kostka, Professor and Acting Dean of the Department of Chemistry, University of Wisconsin Rock County.