No, I use a notebook. I usually have about 5 books going at the same time, so I write down the title and, whenever I stop reading, jot down the page number. I don't torture books. Except cheap copies of Jules Verne where the names of the characters have been thoughtlessly mis-spelled and there are even a couple of chapters missing. Not exactly a volume of great, if any, value.
I don't use libraries in China, hence the bookcase in the living room. All the useful stuff is in the right place, namely the drawers in the desk. Organized and tidy, as they should be. The rack in the wardrobe is actually quite sturdy. There are even more clothes hanging on it now and not a creak has been heard to indicate any unbearable strain on said rack.