What's Your Bookmark?
Almost everyone I know uses them, except one of my friends who has an incredible memory who seems to be able to always remember what page he's on. My problem is that I can never find them! I've bought a couple of really nice ones in the past, but I continually lose them. I currently don't know where they are. They're probably in the house, somewhere. Whenever I don't have one on hand, I'll use whatever I can find; strips of newspaper, a card, whatever's handy.
So what about you? What's your bookmark?