Downloading fanfic from AO3

I've been downloading a lot of fanfic lately for personal archival purposes, and I figured I'd share how I do it in case it's useful to anyone else (and so I have it written down in case I forget!).

There are lots of different ways to save fic, including the file download built into AO3, but I find that this gives me the nicest ebooks in the most efficient way.

(Under a cut cause long.)

This is how I do it, absolutely recommend having copies of favourite works. Happy to help anyone out who gets stuck