TBR Bingo (To-Be-Read Bingo) is a concept I discovered through @MissDahlELama (via @twobossydames). The concept is a simple one: Create a bingo sheet of books that you already own. Read those books. As you go, you are allowed to buy a new book each time you get bingo! As someone who owns far too many unread books, this is obviously a great idea.