Many of your nicer card shops also sell candles and other scented products. They also usually have a candle burner at the cash register counter. It makes the store smell so good. When people smell the candle burning while checking out, they usually ask what scent it is, if it is one that appeals to them. Often, they will ask the clerk if they can go find them and buy at least one, along with the rest of their purchase. Usually whatever scent the candle is, also comes in the form of potpourri, which is also a big seller.