Its not just another day. Its the one day that is given to you today. It is given to you--it is a gift. Its the only gift that you have right now. And the only appropriate response, is gratefulness. If you do nothing else but to cultivate that response, to the great gift that this unique day is, if you learn to respond as if it were the first day in your life and the very last day--then you will have spent this day very well.
Think that just about sums it up.