ok folks, apologies for the boring topic. Have some new (expensive) engineered hardwood flooring installed. Its very grubby already with mud and other crap from the builders traipsing in and out. Have some cif wood cleaner and some flash wood cleaner - though unclear whether they are suitable (or effective). Have tried water with e-cloth mophead and it seems ok to begin with after drying it looks rubbish again and I can see the stains. What about white vinegar? Any experiences??