I disagreed, I think it should be done annually. Yes there may be some stuff left but the spots that will need it the most may not be protected. Once you go you are guaranteed that price each year if you do it with 30 days of that original date. Also, as with everything there are good Krown places and bad ones. You have to find one that is recommended by someone you can trust.
My car is a mess right now because of it but it will be clean on the weekend.
