Alot will depend on if the wood is heavily soiled or just dull from lack of polish.If you need to remove soil I would suggest a product such as Murphy Oil Soap or similar product.Using a sponge or cloth wet the wood only enough to remove the soil,you'll rehydrate the wood with either a wax or polish.Although very laborious,I have had good luck with paste waxes which contain carnauba.The wood requires hand polishing about 4 minutes after applying,but the results are outstanding.A regular furniture polish is also acceptable.For touching up scratches,try Old English.