I recently pulled up the old carpet in our home. The wood floors underneath are in so-so condition. My mother-in-law says don't use any type of detergent or any excessive water on the floor but I thought that was for wood floors that have a finish on them. My boards are kind of dry looking with just a touch of sheen in certain areas. Also, they seem to get dusty so quick! She says I should use Murphy's Wood oil on them but I'm not sure. Will that help with the dust and give the wood a brighter look?