RCI adds 15% automatically to all soda and alcohol drinks. You will have the option to have tips for the service people (waiter, asst waiter, cabin steward) automatically added to your account or tip in cash.
RCI has three programs to choose air through them. 1)Standard Air - they will use whichever airline they can negotiate the seats for the best price. 2) Custom Air - If you have a specific airline or specific request/needs, you can pay a fee and they will customize your air. 3)Choice Air - You can go to their special air website and choose your own air schedule from their flights that are offered. There is an additional fee for them to issue the ticket from their website.