In the 80’s I worked at a company that sold CAD workstations. We had one customer that smoked in his small office. Whenever we went there for maintenance, I wou

In the 80’s I worked at a company that sold CAD workstations. We had one customer that smoked in his small office. Whenever we went there for maintenance, I would bring some cleaning wipes and transform his medium brown computer to something closer to light gray. Yuck!