I started to do a stair circuit in the parking garage of my building. Now we should be doing the stairs as part of the Warrior Workout class that I take in the gym (at the bottom of the garage) but I get bored with the stairs. Somehow instead of cheating and doing less boring things, I added to it. So, starting from the back of the gym, run around the corner and into the entrance to the parking garage. There are eleven levels to the garage, so run all the way up them. At the top, on the eleventh floor, there is a stairwell. Run down the stairs to the bottom.