Sundresses or lightweight slacks and a summer top are appropriate for women, while polo shirts, button-front, short-sleeved shirts, and khakis are appropriate for males. Some ship dining rooms may prohibit shorts for dinner and other evening activities; verify your cruise line's evening attire policies before packing, just in case. If you plan to spend most of your time on board exercising or relaxing by the pool, then it isn't necessary to wear a suit. If you want to go out on the town at night, be sure to bring something elegant but not too formal. A nice dress or skirt and some high-heeled shoes will always get a positive response from people who see you walking down the street. Sunscreen, a hat, sunglasses, and insect repellent are essential for enjoying a cruise in the Caribbean. You should also bring layers of clothing, especially if you plan to visit any hot spots after dark. In addition, pack toiletries because there are no free bathrooms on ships, and sea days can be very rough. Finally, don't forget your passport and money belt with cash and credit cards inside their respective pockets. Cruise ships have different rules regarding luggage. Some allow only small bags, such as roller bags or backpack carriers; others require that passengers check in large items such as cars or trucks. Find out what type of luggage of size ships use so that you know what to expect when you arrive at your destination.