Packing List: Caribbean Cruise in Spring

In a few days I will be off on a 7 day Southern Caribbean cruise that begins in Puerto Rico and covers St Thomas, Dominica, Barbados, St Lucia, St Kitts, and St Maarten before returning back to San Juan. Although the weather is a constant 85°F and little rainfall is expected during the month of March, the list for a short 9 day trip is one of the more vast that I have encountered in all my travels.  This is a result of all the different dress code policies that the cruise lines request of guests.  While these are not optional, I don't want to feel out of place next to people dressed in full on tuxes with me wearing a measly polo shirt, and my girlfriend may not appreciate that either.

There are three main clothing types that need to be packed for a cruise:  beach wear, casual wear, and "elegant" wear as the cruise lines put it.  Most of the islands are very laid back and fully accept t-shirts, flip flops, and shorts in most all restaurants and shopping establishments unless you go high class.  Most cruise lines typically frown upon this dress in the dining rooms and suggest something a bit more refined for the dining room where the good food is served.  So some polo shirts and long pants are a must for the few hours that will be spent in the dining room.  Of course, this is not enough for the cruise lines, and most include one or two "elegant" nights in which case formal wear is requested, with some going as far as insisting on jackets for men.  Luckily Carnival does not enforce jackets, so I am not bringing mine for sheer lack of room, because 3 clothing types for one week is beyond excessive to me.  It is sad that I probably am packing double the amount of clothes for a week long trip than I will take for my entire RTW trip that will be 50x longer.

The packing list I used for a 7 day Caribbean cruise is as follows:

Carry-On:
Digital Cameras w/charger (3)
Ipod w/charger
Power Adapters
Mini Tripod
1 copy of information
Passport
Travel Pillow
Extra Camera Batteries
Kleenex Tissue
Tour Journal
Extra Pens
Lip Balm
Glasses w/Case
Sunglasses
Umbrella
Netbook
Netbook Cables
Oscar the Roaming Gnome
Rum Runners (Review after the Cruise!)

Checked Duffel:

Boxer Shorts (2)
Socks (4), Black (2)
T-Shirts (6)
Polo Shirts (1)
Nicer Shirt (2)
Tie (1)
Shorts (3)
Long Pants (2)
Swimsuit (2)
Night Pants (1)
Dressy Shoes (1)
Water Shoes (2)
Flip Flops (1)
1 copy of information
Toiletries
Alarm Clock
Beach Towel
Snorkel Gear

Toiletries:
Toothbrush/Paste
Deodorant
Face & Body Soap
Razor
Shampoo
Q-Tips
Nail Clippers
Tweezers
Daily Vitamin
Claritin
Sunscreen
Travel Tums
Lip Balm
Bandaids
Hand Sanitizer

After I get back from the cruise I will update this post to include comments on whether or not some of these items were excessive or not even used.  But I feel that this list should be alright to wear clothes without having to do any washings or re-wearing while on the trip.  Since there is room in the luggage, why not?