I self employed do contract structural engineering for airplanes and helicopters. not the ones most of you fly on, though so no complaining about airline seating. i have done a Boeing 737 (what southwest airlines flies) that carries less than 30 passengers. needless to say, all the seats and beds had plenty of leg room. some of the showers seemed a bit cramped, though.
My commute is awesome, brush teeth, get coffee cup, walk into office (<2 min.). i get to work any 80 hours of the week i want. Actually, we are a bit slow now, so it is staying closer to 50-60 hours. Good for hobbies (and forums), not so much for the bank account. But I love my job. Been doing it 15 years.