i'm a self employed overhead door mechanic, or in non professional terms garage door repairman. have a lot of time to surf, and sometimes try to do my jobs for a whole day 12/16 hours straight, and surf the next day or do whatever i want the other days. only work 20/25 hours a week, and that's fine for me. ideal, and i still make more than twice of what i made working for someone else 40/50 hours a week.