ATTQOTD: This is a tough question because, like a few of you, age is working against me at this point. I'm 48 and did not start "serious" running until about 6 years ago. I've set a few PR goals at the major distances that I'd like to hit in my lifetime, and I've already hit those for the marathon and the 5K. I'm still chasing PRs in the half and 10K, and that's keeping me motivated right now. I also want to run at least one BQ marathon every year, to go back to Boston again. Most of my other big running goals are just "finish"-type goals, like running the World Marathon Majors, Comrades, etc., without specific time goals. I've found that what keeps me happy is mostly running a lot of easy miles, with some harder workout miles thrown in when I feel like it. I like being able to head out the door everyday and decide distance and pace purely on whim, without any sort of schedule. I'm still competitive and may return to more focused training in the future, but right now, my "make it up as I go along" training is keeping me happy and healthy and not burned out.