If you have a high UV factor your floors may continue to change for years. We have the original oak flooring in our 1940 cottage and when I switched rugs in the DR, you could see the difference. My old rug was too small, so I finally decided to ditch it. For 2 months I put a different-sized, even smaller, temporary rug down. When I took it up for the new (bigger rug, you could clearly see the outline of the temporary replacement as well as the original I started with! However, it all blended in after a while - as I recall, took a couple of months, so it was no biggie.

I would not as the gain will be minimal. If you have a heavily used hardwood area, wear should be evident and it 1 will look the way a heavily used hardwood floor should look.

You need to do a little more archeological digging still. You need to know the whole construction of the floor before you can decide how best to install something new. I'd take up that plywood piece in the kitchen and see what's under it. It's higher than the surrounding floor, so needs to go. You should also be able to see from there what subfloor is under the original kitchen hardwood. It's too bad the space under your entryway is finished, but I'd still do some exploring from below to see what's under there, and to figure out the fix to stop it from squeaking. Is it drywall below or a drop ceiling? I know it probably seems like a pain to tear out drywall, but if you cut out a clean patch, like 2' x the width of the joists, it'll be relatively simple to repair. Just make sure to cut it down the center of the joists so that there's room to screw the patch piece to it later. Cut the hole under the area that squeaks the most, if you can. Have someone walk on and watch the floor from below to see what's moving. It might be as simple as pounding in a couple shims from below, or face-nailing a loose board from above. You want to find out what's underneath the hardwood. It might be laid directly on the floor joists, or there might be 10" wide boards that the hardwood is nailed to. Another thought is to take out a board in the hallway, since that's not original and you want to replace it. See what the subfloor is there. I am a bit puzzled at why, when you've stripped the kitchen down to the original hardwood, it's still higher than the hallway floor. Is your current surface perhaps not the original kitchen hardwood? Peeling back the plywood area will help determine that. BTW, I haven't heard of that stop squeaking product you linked to, so can't offer any personal opinion. And don't pour self-leveling compound over top of hardwood. It needs to go over plywood.

Palinpset-Well, even barefoot it is bad. :( In fact, I think the oils on our feet smudge it worse than shoes. I like the idea of socks others mentioned, but of course it is just not practical all the time. carol-I have considered that it may be the cleaner, so I will try your suggestion. Thanks. nancy-I will also try your product, the Bona X. I have Bella Wood cleaner that the dude from Lumber Liquidators suggested to me. Not sure if that could be the problem, or if it just doesn't clean that well? I will try Bona X! nanny-glad to know I am not alone in this! Thing is, the hair doesn't bother me as much as those darn smudges!!!