I'm interested in taking up the carpet and having bare floorboards in our bedroom. I tried pulling up the corner and the boards themselves seem to be in good shape, but DH hates the colour of them (stained / varnished a dark brown). If I were to - ahem - do a little investigation of floorboards while he is off on a business trip, what would I need to do? e.g. can I take a small sander to them to get an idea of how they might look?