Then came the commute, the humidity, the hair tie or the hat. By lunch, the frizz is back, there's a dent where your ponytail was, and your bangs are doing their own thing.
Redoing it isn't easy. A full-size flat iron needs an outlet, a mirror and time you don't have. Wetting it in the bathroom sink usually makes it worse. So most days you end up just putting it up.