We are thinking about booking a 4 day Cruise out of Ft. Lauderdale on RC's Grandeur of the Seas. We have cruised Royal Caribbean once before and Carnival many times. This time, we would like to try the "My Time" dining. The website says you can make a reservation if you would like, however, I don't really want to make a reservation at all. I would rather just go to the Dining Room when we want to arrive. Has anyone tried that with My Time Dining? Also, RC mentions on their website that tips for My Time Dining are pre-paid. How do they handle that? Do you have to bring cash each evening or is the tip just placed on your sail card. Thanks!!