One-Hand or Two?

Having a new baby has given me a whole new perspective on everyday household chores like cleaning, cooking, and even just getting ready in the morning.  If I can do it with one hand, it'll still get done, although it might take twice as long and not be done with much precision.  If it requires two hands, it could be days until I have a window of opportunity to do it because a daily shower and eating take priority!  How do people with crawling (or running) kids do it?  

Have you ever tried to do your hair one-handed?  It just doesn't work.