How are you tidying your books?

Hello all,

I'm so in love with my library and at the stage where I just want to be sure the books are in the best possible state for me to read. My process is thus far to find or update the book cover, extract isbn, and then in polish, I have the following checked: Embed referenced fonts, subset embedded fonts, smarten punctuation, update metadata, update cover, and add soft hyphens. Is there anything more that you do to your books that you recommend? Anything that makes your books just your pride and joy?