"Great Thread..."

My Maintenance and Backups...
Scan system for viruses once a month (Norton AV 2003, auto update)
Run and update Spybot S&D once a month.
Run and update Ad-aware 2 to 3 times a month.
Run and update SpywareBlaster once a week.
Clean the Registry around 3 times a years or after a heavy list of recent un-installations.
Compact the Registry about twice a years.
Defrag the HDD 1 to 2 times a month (Diskeeper)
Clean out temp files, trash or any other useless trash 2 to 3 times a month.
Empty Cookies once a week.
Scan Disk, once a year.
Install Windows Updates, twice a month.
Backup all important files once a week with "easy-Backup" onto a Zip Disk. (e-mails, addresses, Favorites, Quicken, RoboForm PW...)
Backup all files (exe, zip) that I've downloaded once I reach a limit that will fit onto a CDR disc. (images, mp3's)

Windows XP Pro (OS)