While driving into Boston from NH on I-93 in a SUV ( up high enough to see) on a Monday morning I notice people enjoying a meal, steering with there knees, shaving, putting on lipstick, playing with there IPOD or Iphone, typing in the gps device, watching a movie, checking email, putting on makeup, talking on the phone, reading the newspaper, reading a book, working on a laptop and even some good make make out sessions and you can use your imagination on other things between two people. Now I know why we are only going about 20 mph on a good day, everybody is multitasking.