To answer Sly, avoid silicone always, wax is OK, but use it sparingly and don't use it so often you get it building up, something like Martin's Guitar Polish is probably better. As far as putting lemon oil of an accoustic bridge or using it to clean the finish, I don't recommend it for that, if you had an old guitar with a checked or cracked finish it could do some damage, I know for a fact that it can mess up certain types of varnish or shellac based finishes that you could find on some classical guitars or violins, etc, if you want to clean the finish of a guitar, it's best to start with a clean, soft cloth, if you need anything stronger than that, try a drop or two of water on your cloth, that will get 99% of the mystery muck off the finish. .........................