I have contemplated doing it but never actually done it. The benefit I idly imagine I might get doesn’t have anything to do with re-reading the notes later; I hope it might improve the attention I pay and the amount I retain. (I am horrified at the number of books on my shelves that I know I have read but can remember scarcely anything about.) Both of these surely matter less for fiction than for non-fiction.
I have contemplated doing it but never actually done it. The benefit I idly imagine I might get doesn’t have anything to do with re-reading the notes later; I hope it might improve the attention I pay and the amount I retain. (I am horrified at the number of books on my shelves that I know I have read but can remember scarcely anything about.) Both of these surely matter less for fiction than for non-fiction.