Hard Wood Cleaner and Polish What You'll Need: 1 gallon of hot water 3/4 cup of olive oil 1/2 cup lemon juice Directions: Clean and Polish your hardwood floors. The hot water and lemon clean the floor and the olive oil leaves a natural sheen. Apply with a mop that has been wrung out very well, then let it dry. No need to rinse afterwards. Once it dries your floors will look great.