As I always carry a book in my bag, they end up getting pretty tatty (stabbed by the hairbrush, bent at the edges), so with paperbacks I am a page turner - sorry, but only with my own books. I also take great pleasure in breaking the spine! :duck:
Hardbacks is different story all together. I remove the cover as soon as the book comes off the book shelf to stop it getting damaged, and I usually stick it in the gap so there are no gaps in the bookcase (weird aren't I). :spin:
I'll use whatever's available as a bookmark as long as it has some colour - I don't like receipts. In my last hard back I used a birthday card, and I like using postcards from friends (a little love before settling down to read and dreams of far off places).
I had a cat bookmark that hooks over the top of the book, but it kept threatening to bend so now it's decorating the TV.
Jo xx