Paranoia

Do you take any safety measures for your computer even if they verge on obsessive compulsive?  Even little things that don't matter.

I use to be fairly paranoid for a Windows user, PGP keys, different alphanumeric-symbol-mixed case passwords for everything, encrypted drives, software firewalls, CRC checks on programs, etc.  Then one day my harddrive died and all the crap I put up worked against me.  Now, I focus all my efforts on mirror RAIDs and automated, rotating backups instead.