We all know we re supposed to back up data. Sometimes we might actually do so. Backing up your data
is important, and yet it is often a neglected part of using computers. Data can be lost rather easily. Human
error, a virus, or simply a computer crash can wipe out important documents, photos, contact lists and more.
http://uneaktips.blogspot.com/2011/04/backing-up-your-data-dos-and-dont-and.html