DD9 attaches memories and their associated emotions to nearly everything in her possession, which makes getting rid of anything problematic. Just recently, DD got a room overhaul, and as I was assembling a bookshelf, I got to overhear DD arguing with DW over every scrap of clothing in the closet.
She can also tell you the name of every one of her stuffed animals, and the circumstances under which she got them. Several have had to be consigned to the Harry Potter suite (a sort of clubhouse/reading nook under her ridiculously oversized bed/dresser/desk combo), but those that remain take up so much space on her bed that she can barely find room to sleep. Don't even think about getting rid of any of those.