One of the earliest lessons I learned using a computer is that you don't toss around with options unless you have backups and/or already use form of (distribute

One of the earliest lessons I learned using a computer is that you don't toss around with options unless you have backups and/or already use form of (distributed!) version control. Even most of my relatively computer-illiterate friends and family members do rudimentary backup for their stuff (usually in the form of emailing themselves or just creating a copy).