[Resolute Conservative]

A better rule is out nothing on the cloud. If it is off your machine or network, it isn’t yours anymore.

[The Duke]

I keep a two-bay USB drive on my desk at home, with an 8T mechanical disk on each. Daily backups - local and cloud - get written to the first 8T drive each day, and second drive gets mirrored from the first drive once per week.

My top-level backup directories are named according to the max amount of data I allow them to contain (by convention). That way I know what size thumb drive to write them to when requested.