Yes, I am one of THOSE people. I didn't back up and got bit in the butt. I was doing home work the other night sat my macbook down and it slid off the bed. It worked fine the rest of the night but the next day after using it, it went to sleep and wouldn't wake up. took it to a repair shop and they said the hard drive was dead (flashing folder with a "?" on a gray screen). All my music, photos, documents (including 2 years of taxes) ....gone. What is the best way to back up a laptop? What do I need to back up? Also (I don't know if this should be a different thread), I didn't have the Tiger install disk and the shop had to get them which held up the repair by a couple of days. How do I make a back up copy of the OS? Can I just control click and tell the computer to make a copy? Will it be bootable later? I have learned my lesson and will back up from now on!