Americans spend, on average, 51 minutes a day commuting to and from work. The fastest growing group of commuters is "extreme commuters"those whose one-way commute takes longer than 90 minutes. The length of one's commute is directly proportionate to how unhappy one ismeaning, the longer your commute, the more you hate life. So now you have a good reason to stop: Saving the planet for your children. Don't you think they'd prefer that to your nice big house in the exurbs?