It's the first of the month which means it's Back Up Your Files Day.
Firstly thanks to Alex for his comments about backing up email:
"On as regards backup i know little,but for restore data there is a good application-recover outlook express,repairing Outlook Express folders if they are damaged or corrupted,extracts and saves e-mails from .dbx files in which Microsoft Outlook Express stores messages and folders on the local drive,will help you avoid troubles with Outlook Express folders, fix the problems with Outlook Express folders that you can't open or recover .dbx of Outlook Express."
Although once a support technician for my ISP told me the way to fix my email problems was to delete all my .dbx files and reboot. Needless to say it didn't work. I got a pathetic fifty quid compensation but actually losing all my emails saved me so much time archiving and replying to people.
Anyway, you might have seen the news announced last week about Reductio, the free online data compressor. I too thought it was too good to be true but I uploaded 2 gb of information (the maximum) and their software reduced this to 4 mb in 17 minutes. I expanded it back and only one file had a minor problem which I was unable to re-produce when I tried it again.
Which is brilliant considering it's still in beta. Of course it means putting up with their advertising while you reduce your files but it's small price to pay considering how much I'll save in data storage costs. Reductio is highly recommended.
Don't delay, do it today. It's Back Up Your Files Day, hooray!
How to decide what data to back up
Back up manually or use Windows XP Backup utility
How to choose an external storage format for backup files
Mac OS X: How to back up and restore your files