Very fixed. I like to do the first two hours of my day, which usually means my first two meetings, while walking. When it’s nice weather, I walk outside, sometimes wearing a contraption so I can type on my computer when I’m walking.

Other times, I’ll use a computer that I have set up on a treadmill. I’m disappointed if I don’t put in 10,000 steps in a day—and it’s very rare I don’t.