How do I sign up for this service? I got into the Sheraton site, and signed up to be a preferred customer, but I didn't find any information about the "quick check-in". Can someone help me? You are all so wonderful to answer everyone's questions....We will be at Vistana Oct. 26 - Nov 2 and I want the trip to go as smoothly as possible!! Thank you for any infor. you can give me. I'm thinking Disney positive!!!!!!! Greetings from Texas - Barbara