I only backup the files that I need, to another drive, manually. I don't do it as often as I should, either. For the few things that I might need remote access for, I save them on Google Drive, or one of the many other cloud services that are free. For one group that I share stuff with, they setup a Dropbox, which I can get from all of my devices, and sync with my PC. It's not so much for a backup solution, though. I setup our budget and checkbook register spreadsheet in Google Drive, shared it with my wife, and we're always on the same page on that stuff. Basically, what I'm saying is that I have multiple solutions in place for multiple portions of what I need to backup.