For those who use Anki – how do you organise your self-made decks?

I’m curious: for Anki users who “sentence-mine”, do you make a new deck for each book or piece of content you’re reading, do you organise it thematically somehow, or just chuck it all in one deck so everything mixes randomly? Have you noticed that impacting how effectively you learn?

It might not be important at all. But I’m curious.

In the past, when I organise words from a single source in the one flash card deck (like from a podcast I listened to), I sometimes get the feeling that my brain is only recognising the words within the context of that deck, because of the familiar associations. But if I saw it in the “wild” in a different context, I wouldn’t recognise it.

For that reason, I’m wondering if it’s a better challenge to mix all my sources together. I’ve just been using a simple dictionary app to make word lists to review up until now. Anki is new to me, and I’m going to experiment, but I’m also interested in how other people use it and their preferences.