  This posting reminds me of one of my favorite songs. It's not a "christian" song, but the message is so beautiful.
It's called "I Hope You Dance". When I get home I'll post the words. We do indeed only get one of these things that we call a life, and wasting it is truly a shame. Some may think that laying on the beach listening to the ocean is a waste of time. Someone else may think watching a movie is a waste of time. Some may even think that spending a relaxing evening with friends is a waste. We all have different interests, and we have different ideas of what is meaningful and enjoyable.
This past winter I got an awful cold because I went to the Botanical Gardens to watch the snow fall. I was freezing, and I wanted to go home, but I realized that (especially living in Virginia) this could be the last time I see a snowfall. I didn't want to miss the beauty of it. We won't all spend our free time the same way, and that's ok.
I think we've just got to remember that life is short, and each opportunity to do a certain thing could be our last opportunity. Let's choose wisely. 
