Visited my colleague today and noticed his battle with ancient windows XP and spyware. His computer was long gone with XP.
What we did, we saved GPG keys from disk and installed ubuntu 7.10. It was fast and furious again, restored keys and installed flashplayer. He was happy within 30 minutes, new ubuntu user with some desktop candy and fully working GPG environment for encrypted email.
So, I have personally saved one soul today, decreased somebody's botnet computer by one and made microsoft to look very funny again.