Make the most of your time and your life. Number your days.
Have you actually tried numbering your days, literally? It's a little depressing, but worth doing. Let's take 60 years as an optimistic average remaining life expectancy for the people reading this this post. This is actually a good estimate if you're around 20 years old. If you're older, naturally your remaining life expectancy will be correspondingly shorter. 60 years converts to roughly 21,900 days. Is this a large number?