Earlier this week I mentioned that most of us need some type of wake-up call to truly come to grips with the finite nature of our time.  I also talked about it in The On Target Podcast yesterday.  That reminded me of a story I received in one of those e-mail chain letters several years ago about a gentleman who used a jar of marbles to keep track of the number of weeks remaining in his life. Through the magic of Google I found the letter...