Have you ever walked up all of the stairs at the Porter Square T station? I have. There are jillions of stairs, so my method is to keep my head down, focus on the music coming through my earbuds, and just do it without thinking about it. I always feel mildly accomplished at the top.
Except! My second time in the Porter Square T station ever I was coming into Porter with J and I ran up the first set of stairs, knowing that I could expend the energy because I would simply take the escalator for the second set. I raced her to the top only to find that the escalator was down and being serviced. OH COME ON! Oh, J laughed and laughed. At me.