What is the best cleaning product to use on real wooded floors?

If they are newer, you can get a purpose made hardwood floor cleaner anywhere they sell hardwood flooring. If the finish is worn, you can rent a waxer/buffer machine and wax the floors.

While hardwood floor cleaning products made at shine to your floor, the coating that they leave is less than ideal. I recommend cleaning hardwood flooring with a more gentle solution of half water and half vinegar. This will clean your floors without damaging them or leaving a waxy film built up on the floor.

Pine sol

I have been told that Bona is a very good (my mom and several friends use it).