Living around a bunch of wood furniture or in a house with a hardwood floor means that dents and deep marks will eventually happen. But there's a novel way to remove those dents without resorting to power tools: a household iron. Put a little water in the dent, then lay a moist towel over the it. Heat up your iron and then move it over the towel in circles, pressing down on it for a few minutes. The heat and water should rehydrate the wood, allowing it to puff back up.