With the advent of digital imaging we can create multiple back-ups of images and store them off site, in multiple locations.

I use a service called Mozy Home. Every day it synchronizes a back up of the images on my computer to their server in Utah. It does this automatically so I can't forget. In addition we back up our images to DVDs and portable hard drives. Our clients images, many of which are once in a lifetime pics are safe, but not only at home.