I would have beat you with six visits in one day, BUT the Newark AC closed at 7:30pm. I had a short meeting in Atlanta, and flew Newark to Chicago, Chicago to Atlanta, and then back again on the same day. So I stopped in the AC in Newark on the way out, stopped in the Chicago AC, stopped in the Atlanta AC on arrival, stopped again on departure, back through Chicago, and would have used the Newark AC restroom, but they were CLOSED by the time I arrived back.

So all I needed to do was visit BOTH AC's in Chicago and I would have had you beat!