When you enter a house, you spray a white rag with Windex and place it in the left pocket of your green apron. Another rag, sprayed with disinfectant, goes into the middle pocket, and a yellow rag bearing wood polish in the right-hand pocket. A dry rag, for buffing surfaces, occupies the right-hand pocket of your slacks. Shiny surfaces get Windexed, wood gets wood polish, and everything else is wiped dust-free with disinfectant.
