I found the stuff about photos interesting. I'm a fairly heavy photographer and use a mac. I don't throw away anything other than pure white or pure black photos. I keep 3 copies of all my pictures, organized like he suggests - in directories by YY/MM. I rsync from the main disk to the second disk as soon as I put new photos on the first disk. I rsync from the second disk to the third disk when I think of it. I have 3 1 TB drives (the last one I bought cost C$ 120) and about 600 megs of photos. I only save the raw images, not processed images.

I like my system better than his, at least for photography. I should make more of an effort to backup other stuff (for which I do ad-hoc backups, usually with tar files).