A word of advice

If there is an important document that is needed on a daily basis, I might suggest that you don't use it as a bookmark, close the book on it, put the book back on your shelf, and then search frantically for the document later in all of the usual places, none of which include a book on your shelf. Or, if you do do that, remember to check your books first, starting with the ones you used most recently, of course.

Take it or leave it.

Also, I would recommend locking your car doors so that, when important documents appear to go missing because you used them as a bookmark and then left them in a book, you can feel safe in the assurance that no one took them from your car.

Not that any of this has anything to do with me.