Thinking about training for a marathon again, except now I'm a regional airline pilot and life is a little different. Anyone do it? Reason for the title: I have a hard time popping into a new city, having a short amount of time to exercise, and finding an outdoor route to run that's of appropriate length, especially if we get put in a strip mall/commercial area or even a downtown area can be hard (I run in rural areas at home). So, I'm thinking a lot of my training will have to be on the treadmill.