I had a goal of running four marathons before I turned forty. I ran marathons at the age of 36, 37, 38, and 39. Last year I ran very little. This year I'm feeling the itch again. I've followed Hal Higdon's Novice training program (I am pretty slow and not willing to invest the time/effort to be faster) for each. It's an 18 week program--last week was 18 weeks until the Air Force Marathon--which is approximately a thirty minute drive from my house.