Using adhesive picture hooks
They’re not up to the job—particularly in humid spaces—and your artwork could end up on the floor. When removed, they often bring a strip of underlying paint or wallpaper with them.
Hanging artwork randomly
Keep picture frames spatially related to and in proportion with a piece of furniture in the room. For example, hang a four-foot painting above a five-foot sofa. “The art has got to connect to something,” says Marissa Sauer, interior designer and founder of Design MACS. Random artwork can also make a room appear cluttered. These decorating mistakes make your home look messy.