
Finally, I am using Crashplan for the offsite backups - it runs in the background at all times. I also have a removable hard drive (currently a 3TB WD Elements USB 3.0 drive), and I will run manual backups to that when I think about it. My primary backup is to a second external drive (currently a 3TB USB 3.0 drive) - data is automatically backed up each night using FBackup (it's freeware).

In my case, I have most of my primary data stored on an external hard drive (currently a 4TB USB 3.0 drive) with the rest on either an internal SSD drive for performance reasons or the internal system drive.

I worked in IT for 35 years, so having a proper backup solution has always been something important to me - I know what can go wrong.
