Have you ever gone to move a piece of furniture across a hardwood floor and heard the horrible scratching sound of the furniture cutting into the wood? It's not a pleasant sound, but according to DIY blog Apartment Therapy, you can remove those scratches with an iron and a little water.
Fill in any Scratches in your Hard wood Floor: If there are scratches that stand out after cleaning the hardwood floor, simply take a crayon the color of the floor and rub it on the scratch to fill the gap. Turn a blow dryer on high, heat the area where the crayon was applied and buff it with a soft cloth.
When finished wood gets scratched, as my floors do from dog claws, we reach for Old English Scratch Cover, which is specially formulated to cover scratches and nicks. It comes in 2 colors, for light wood and dark wood. www.oldenglishpolish.com