Some days, or some parts of days, I just want to stand and work for a bit. Sitting all day, hunched over my laptop, violating every possible ergonomic computer fahrvergnügen, leads to self-schadenfreude.
And a headache.
So instead of investing in a fancy standing desk/treadmill desk/kiosk doohickey, I set my laptop on a cardboard box I liberated from the mail room. The only drawback is it sounds like a drum when I'm typing.
A real standing desk, both at home and at work, is still on my wish list.