It’s true. NO, really.
The very first day of University, this is what they told us. We all thought “Nahhhh, that’s not true”. Then at some point in our first year, a computer broke, a file got accidentally deleted, insert-other-mishap-here.
My own track record with backups has been iffy, but overall I’ve been lucky. Learned a few hard lessons, but nothing too devastating (*frantically knocks on wooden desk*). I’ve started to build it into my calendar – Fridays are backup days. It takes maybe 10 minutes, I can tidy up while the files transfer over, and I have peace of mind, and am protecting my client’s best interests as well.
Take a look at this site for tips on how to streamline your backups better.