Grandma and Granddaughter (13) are planning first cruise on Fantasy in August 2014. A few questions. 1. Is a porthole necessary? Never having cruised but afraid of motion sickness what is the best part of the ship to consider? 2. When is the best time to book? Are prices likely to be better this early or should I wait? As a first time cruiser should I expect any upgrades/discounts or breaks on travel insurance? 3. Is it better to use a private car service or the Disney transportation? 4. How do I work out coordinating flights a sschedules are no out this far? 5. Any other tips are appreciated. Thank You.