Life aboard a cruise ship is generally laid-back and casual. Pack for comfort.

Some cruises travel through multiple climates. Make sure to pack accordingly.

Most ships have exercise facilities and classes. If you plan on working out, don't forget gym clothes and shoes.

Footwear should include walking/running shoes and, if you're headed someplace warm, sandals.

Even when cruising warm weather destinations, consider packing a sweater/sweatshirt, water repellant jacket and hat.

Though most dining areas on larger ships have a dress code, not all do. Options outside of the main dining room, such as a pizzeria or buffet, will generally allow t-shirts, jeans and shorts.

When the dress code for a dining area is described as "casual", plan to dress in "golf" attire. T-shirts, jeans and shorts are not allowed.

When the dress code for a dining area is described as "informal", plan to dress "business casual". Women generally wear dresses or pantsuits, while men usually wear lightweight jackets.

When the dress code for a dining area is described as "formal", women should be prepared to wear cocktail dresses or gowns, while men should consider wearing business suits or tuxedos (though not required).

Most ships that have formal events offer tuxedo rental onboard, eliminating the hassle of packing one.

Almost every ship has laundry service (including dry cleaning), but the tab can add up.

Most ships have powerful air conditioning. A sweater or sweatshirt may come in handy.