Why Do Today What You Can Put Off Until Tomorrow

Scientific American.com: "I am a moderate procrastinator. Even when I believe that I would be best served by finishing a task (say, filing this story), I will occasionally put it off in favor of some short-term reward (like a much needed caffeine fix). This tendency on my part to delay what is in my long-term interest can now be explained by a simple mathematical equation, according to industrial psychologist Piers Steel of the University of Calgary."