I learned this the hard way. Two years ago, I squeezed a queen-size sofa bed into my 42-square-meter apartment. It worked for sleeping, but the room felt like a furniture showroom. The back wall was bare white plaster, and every time I had guests, their eyes landed on that colossal lump of a sleeper. Then I installed three vertical planks of grooved wall panels behind it. Suddenly, the sofa felt anchored. The visual weight shifted. Instead of a room with a big bed, I had a room with a deliberate, designed focal point. The panels gave the whole setup a reason for being there. They cost me about sixty euros and two hours of work, and they changed everything about how the space functioned.

Before I commit to any seating arrangement now, I always think about the backdrop. A standard pull-out sofa can look brutal on a plain wall. The metal legs, the flat backrest, the vast expanse of fabric it all sits against nothing.