Here's what to pack for a 7-day cruise to the Caribbean You should average two outfits per day, as you'll wear one during the day and one at night for dinner.

On cruises of 6 days or longer, no more than two bags, per person. Each checked bag and carry-on bag should not weigh more than 50 pounds and, when lying flat, bags must not exceed 16 inches high, by 24 inches wide (the length of the bag is not a factor). For security screening purposes, all luggage should be unlocked.

3-1-1 Liquids Rule You are allowed to bring a quart-size, zip-lock bag of liquids, aerosols, gels, creams and pastes though the checkpoint in carryon luggage. These combined items need to be less than 3 ounces. More information from the TSA.