[joshstrange]

You described your client as:

> not tech literate.

Yet you expect him to understand the need to backup his data, manually, to a local device?

You want to use a 3-2-1 backup strategy:

- 3 backups

- 2 different mediums

- 1 (at least) offsite

A local USB drive satisfies only part of that and doesn't account for the most important (IMHO) offsite requirement. And again, unless there is a some automated process you can assume whatever backup you took will probably be the only one ever done. Perhaps they will backup manually a handful of times but it's just not realistic to expect anyone, even a "computer nerd", to manually backup their files regularly.

I'm really not trying to be a jerk here but I fear you have a call in your future about how their computer died and they plugged that "thumb thing you gave us" into the new computer ("actually, do you have a dongle? The new computer only has round holes, not these square ones") but I have the pictures I took last week (/month/year/since you took the original backup).