Maybe this is a dumb question, but is there any way (lacquer, etc.) to protect my pine floors from being scratched to death by my dogs' claws? I have 100 year old pine floors that are in pretty great shape. Some of the boards are a little unstable and pulling away from each other, but they were refinished pretty recently I think, and the grain is wonderful, and they are smooth and don't have a lot of stains or anything. I also have 3 big dogs (2 are about 85 lbs, one is about 60lbs). Even if I keep their nails trimmed, they've always scratched the wood floors we've lived on before. We just moved to this house recently, and I want to keep it from meeting the same fate. I'd also like to see that lovely wood, so I don't want to cover it all up with carpet. Any ideas? Thanks!