Re: realy old pc
I was just thinking something similar. Turn it into a server of some type for your home. I'm surprised you can even install XP on there. Make it into a personal file and print server, hehe. Should work fine for the household (if the limited hard drive space doesn't run out, lol).
*Fact: Microsoft Window's Blue Screen of Death vs Computerforums.org's White Screen of Death. Which is worse?