Sprinkle baby powder or graphite powder between floorboards, then sweep into cracks. For stubborn spots, secure loose boards with finishing nails.

Apply walnut meat or a wax stick for minor scratches. For deeper gouges, use wood filler + touch-up stain.

Damp mop (not soaked!) with pH-neutral cleaner (e.g., Bona). Avoid vinegar (can damage finishes).