You will be able to sign up for the C&A once you are on the ship. I did it and it took no time at all. A few weeks after arriving home I recieved my card and info packet. I periodically recieve magazines with coupons in them, however they have not been any that I have been able to use. We will miss eachother in port canaveral by one day, We are on the Mariner 8-6 and it returns on 8-13. Have a fantastic time on you cruise.