I laid new 22mm pine floorboards in the lounge and hall about 10 years ago and it's looking pretty tired now. I intend to sand and re-treat but what with? I like the knackered look so don't want a finish that sits on the surface i.e. varnishes but would rather apply some kind of oil that soaks in. I have 2 Irish Wolfhounds and a Great Dane (hence my member name) so the floor takes plenty of hammer. Sooo, what about oil? Linseed or some other? Any ideas/experiences?