I used to clean my (old) wood floors by vacuuming, then cleaning with a mop, then applying a shine product and they were ok.  The first time I used the Shark VACMOP I was stunned by how powerful it is...sucked dust out from under furniture!  Then I cleaned the floors with it and got up more old residu than I ever could before.  A quick going over with a shine product and they look better than they ever have!!