There is one thing I've learned in life:
Always celebrate today. Tomorrow may never come.
Always worry only about the present. The future will take care of itself ( Usually with a little help from the man upstairs ).
If you remember, Alice is pretty good proof of that philosophy.
You're fully right about important things in life.
About software, when we can choose, I'd like long life support. It's a choice. I won't support a shareware. I hate when a freeware becomes a shareware. So, I don't like when Symantec buy another software. Just long life support, not a philosophy in my life.
And also, it's hard to me not to preview the near future. I try to live in present, but, sometimes, it's hard to me, costs some effort. Other people are different and other things will cost to them. I can't win this battle against myself. Lucky the ones who already won it.