Setting up your living room? The 3-5-7 rule interior designers don’t want you to know

Now let’s apply the same principle to the décor on the shelves, coffee table, and wall arrangements. Group your décor objects, such as books, vases, candles, or artwork, in clusters of 3, 5, or 7 pieces. If you have photo frames on a shelf, go for three photos. Now, let’s move on to the plants. Go for five small plants, and stack seven decorative books at varying heights. This clustering will prevent your living room from looking cluttered. You can simply apply this rule to any room in your house.