Having backups is a very good idea. Losing track of said backup, not so much:
Dry Cleaners Claim Over 17,000 USB Sticks Were Left in Laundries in 2010
Having a backup of your backup isn’t a bad idea either. Just don’t keep it in you pants pocket.
Perfect application of Principle 1: If you can’t do without it, make sure you won’t have to.
