- My web server making automated backups of it's databases.
- My computer automatically downloading and cleaning up the backups of my web server's databases.
- My other computer making a copy of the important files on my computer (including, of course, website database backups).
- My offsite machine making a copy of all of that in another location.
At the end of this process: My important personal files are currently stored on five hard drives in two physical locations. All of this happens without me really paying attention to it.