I'm glad I posed the question, the replies are interesting. I started thinking about counting down when I calculated that I had 1000 weeks to go for my 30 years of service. This was several years ago. It depressed me, but then I thought that, if I walked 10 miles a week, I could get from my house to Singapore in that time. Now, in the back of my mind, I always think about where I am relative to that day, drawing a circle around home. Currently I am a few miles east of Denver, from the DC area. I wonder how far I will go before I move on to the retirement adventure.