What do you use to mark your place while reading? Do you have a definite preference? Do you use bookmarks, paper, or (gasp) turn down the pages? If you use bookmarks, do you have a favourite one?
I dog-ear my pages and sometimes use bookmarks. If I use a bookmark it's usually something from the bookstore or something that was included with a galley or a review copy. If I'm reading a hardcover I'll sometimes use the dust jacket to mark my page.