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How to protect floors from furniture
Put a rug under your furniture.
Rugs can add a splash of style to your room, in addition to protecting your floors from the furniture resting atop them. If you choose to get a rug, though, be sure to clean under it from time to time.
Dirt under a rug which people walk on can rub off the finish on the floor underneath it. Place furniture cups under the legs of heavy furniture.