3. Free Soda
Many cruise lines charge extra for soda. Obviously, this is limiting to soda drinkers and can make them feel nickel-and-dimed, to say the least.
Disney Cruise Line never charges for soda. In fact, they have self-serve soda machines sitting outside, ready to be used 24/7. They sit right next to the free self-serve ice cream machines, making for the ultimate float station.