One way ticket

We are going to cross the Atlantic on board the Queen Mary 2, and stay at sea for the whole week! During the trip 3 formal nights are previewed, including Black & White Ball and Royal Ascot Ball. (BTW there should also be Titanic Ball, for the 100th anniversary of the cruise - 1912!)
The rest of the evenings are only Semi Formal and Elegant Casual :O Well then, time to get some elegant attire...

Image from Wikipedia