Fixing up scratches in your hardwood floor can be quick and easy and only require a trip to your pantry. Look for a darker cooking oil; I used sesame oil. Using either a rag or paper towel rub the oil in to the wood and wipe away an excess. That's it. Although, I will warn you that if you use sesame oil you might start to get hungry for some stir fry. :)
Also, make sure you take care of what is making the scratches in the first place if it is due to rubbing. Turns out that the padded feet on the bottom of our ottoman had worn away and was scratching our floor.
This is a quick and easy solution.