Every columnist has written about their catastrophic hard-drive crash, so I won't bore you with the details of the one I had last week. Suffice it to say I'm doing fine, thanks for asking. I also won't harangue you about making (and testing!) regular backups - you know that already, right? (I bet Mac|Life senior editor Eugene Robinson still hasn't gotten over his loss.) Instead, I'm going to tell you about something that could have saved my tuchus at the expense of ten minutes per month of (unattended!) Mac time. To wit: Disk Utility - it's included in Mac OS X, installed by default in /Applications/Utilities.