I have 800 books of just Samuel Beckett's work, tons of his correspondence, personal letters that he wrote. I have copies of plays he used when he directed, so all of his handwritten notes are in the corners of the page.
I have to concentrate more intently when people speak. I always have to position myself on their right side so that I can hear out of my left ear. I sometimes get a crick in my neck from listening. But I don't there's too much else.