My father was a watchmaker and his shop was in downtown Kansas City on a famous street called "Petticoat Lane."  Women used to wear long dresses in those days, and they wore lots of skirts under their dresses called "petticoats."  It got very windy there and when it did you could see their petticoats, which you weren't supposed to see!  On Sundays when I was a child, my father took me with him to his shop downtown to help him wind the watches he had repaired the week before, so that on Monday when the owners came to pick them up they would be running and ready.   In those days watches didn't have batteries.  They were kept running by springs that were wound up real tight inside of the watch so they would unwind very slowly, moving the parts inside.  He showed me how to hold the little knob on the rim of the watch between my thumb and pointing finger and move the knob back and forth until the spring inside was tight.  This made the wheels move the watch hands to the right numbers to tell the time. During the weeks before I went to help him do the winding, my father had cleaned the watches by taking them completely apart and putting the parts in lots of little glass dishes for cleaning and drying. There were so many parts that I wondered how he could remember how they should go back together, but of course he did.