Wife claims that the sticky under-carpet pad she's familiar
with will harm the floor (the "valuable, beautiful wood floor"),
and that I'll just have to learn to be careful when
entering that room, that's all.
(Guests breaking necks? Nah, no worry, ...)
So, what to do -- that won't "harm" the wood floor?
(Especially nice if it doesn't cost an arm and leg ...)