Really helpful. Thanks!
I’ll chime in with a browser extension that might useful for people who prefer to save stuff as HTML-pages: SingleFile. It has a lot of advanced options and capabilities though, but if I remember correctly it’s pretty easy to use as is - out of the box.
https://addons.mozilla.org/en-US/firefox/addon/single-file/
https://chrome.google.com/webstore/detail/singlefile/mpiodijhokgodhhofbcjdecpffjipkle
So what’s special about it? It removes scripts and embeds all images and other resources into one single HTML-file.