When you have to give your car key to a car wash, car service center, valet or any other place where you would supply a key, make sure that you have that key on a separate ring so that you are not giving them access to all of your keys. It is far to easy to either duplicate them or cut a key by code for them! I am not suggesting to you that this will happen, I am simply saying that for the price of a key ring it is never worth taking the unnecessary risk!