Most ships also have single cabins as well as singles rates for double staterooms. In many cases, the cruise line will even find you a roommate to share a double stateroom if you ask them. Pack like you would for any resort. Cruise vacations are casual by day, whether you're on the ship or ashore. In the evening, ships vary as to dress.
Attire is dictated by occasion.
Some ships have theme nights such as Country and Western night, or a Roman Toga party, so you could dress accordingly if you desire. Shorts are not allowed in most main dining rooms during the dinner meal. Our cruise consultant can provide you with information about your ship's dress code. On some cruises, formal dinners or parties are part of the fun. If you do want to dress up, many ships offer tuxedo rental services.