Well I've tried different things for getting or staying in good physical condition. Fire academy, gym membership, running, sports, home workouts DVD, crossfit. But what I like the most is calisthenics. Pull ups, push ups, squats, dips. Using my own bodywieght, I can workout anywhere. Its a lot better on my joints and it's cheap. And I'm in better shape than I have ever been in. I also eat pretty good most of the time.