Did you ever ponder how long you will live and how much time is left?

I do and I try to trick myself by saying that I'm going to live to 100. 

Both my parents lived to 86 and neither was as physically fit as I work to be. So I like to believe I'm on track. 


Having said that another trick is to be in the moment and enjoy life to its fullest. 

But then we are encumbered by unavoidable wastes of time. Some examples which come to mind are runway take off delays, Doctor's office visits, waiting on long lines, automated telephone answering traps, being stuck in traffic or with an intolerable person. 

What should one do as the sands of time trickle down?