Onan the Clumsy,
I am with Background Noise. Use a CD Burner and burn CDs every night. With the latest 52X burners, it takes seconds to burn a CD. Every day make a backup. Rotate the location you put the CDs every night. Example:
Monday put that day's backup in a fire safe at work.
Tuesday put that day's backup in a safe place at home. (If home is in a different location than work.)
Wednesday put that day's backup in a fire safe at work.
Thursday put that day's backup in a safe place at home.
Friday put that day's backup in a safety deposit box at the bank.
This is extreme, but it gives the example of what to do for safety including fire damage at any one location.
Take Care,
Richard