So me, a Masshole, made a railfan/Christmas overnight trip to NYC Thurs-Fri. I took Amtrak to Penn, the LIRR to Trainland, and saw several the toytrain/model railroad displays. I took the subway quite a bit during my brief trip and I noticed that the subway cars tended to be quite clean. Up here in Boston, the subways are often littered with coffee cups, newspapers, etc from our wonderful riding public. Is this common on the NYC subway or did I experience an exception.