Regular retail price $15. Paid $0. Totally free!!! Cobble Stone Car Wash offers a free car wash during your birthday month, no sign up necessary! Down sides are they didn't vacuum the seat backs so it's still visibly covered in dog hair and the wipe down guys do the inside of the windshield with a chemical rag so it causes haze and has to be scrubbed off if you want to be able to see at night. I only know about this deal because the first time I went someone was redeeming it. I would not have gone back after my first time because I had to go through the wash twice to remove a new bird poo from my window - their sprayers are weak, but had to pass up a free wash. I'll stick to my normal wash place when it's not my birthday.