Here's a sample packing list that someone distributed.  I would just add to this all of my Semester at Sea library manuals and other stuff I'll need to get the job done.  Must make a list of those...

PAPERWORK

passport

4 copies of passport photo page

2 extra passport photos

copy of everything in wallet

list of emergency contacts

address book and envelopes

MONEY

money/passport security neck bag or belt

credit cards

some cash in the local currencies

CLOTHING & ACCESSORIES

**bring clothes that you don’t care about, they may get ruined

glasses

contacts and care solution

large and medium-sized backpack

day pack

tee shirts

long sleeved shirts

sweat shirts (the ship is ALWAYS cold)

shorts

workout shorts

bathing suits (2-3)

pajamas

tank tops

jeans

socks

underwear

outerwear

light jacket

raincoat

hat (required for lifeboat drills)

2 pairs of sneakers

hiking boots

walking shoes

sandals

dress clothes (there are at least two formal dinners)

dress shoes

beach towel

blanket – a little throw blanket because it gets cold at night in the middle of the ocean

TOILETRIES

brush

deodorant

shampoo & conditioner

soap

q-tips

sunscreen

bug spray

moisturizing lotion (the ship water really dries out your skin)

lip balm

shaving cream

razor and blades

dental floss

toothbrush & toothpaste

tissues- you have an unlimited supply on the ship, but bring the little pocket packs in case there isn’t toilet paper in some places

nail clippers

overnight toiletries

hand sanitizer

tweezers

soap container

MEDICINES

Neosporin

Cortaid

Bandaids

cotton balls

alcohol

Pepto Bismol/Tums/Rolaids

Imodium AD

Tylenol/Advil

anti-itch cream

cold/sinus medication

sea sickness medication

vitamins/iron supplements

ELECTRONICS

camera & battery charger

flash drives

strap

case/cords/accessories

extra batteries

laptop computer & battery charger

iPod & charger

cell phone & charger

MISCELLANEOUS

extra pillow

duct tape (not sure what for)

1-2 bottles of liquid detergent (like Woolite)

laundry bag

travel sewing kit

clothespins (to hang your hand-washed clothes)

journal

travel guides/travel books

watch

nalgene bottle

playing cards

safety pins

batteries

luggage tags

old sneakers

FOOD

Bring any of your favorite non-perishable foods.

If you’re a “gourmet” coffee drinker (or even remotely picky) consider bringing your own as the coffee on the ship is not very good.

Ginger snap cookies (good for mild nausea from sea sickness)

gum

tea bags

candy

powdered juice - the water on the ship is gross so it’s good to have those little individual powdered juice packets to take away the flavor

MISCELLANEOUS ADVICE

Don’t bother bringing traveler’s checks because they are more trouble than they are worth. Just bring about $200-$300 cash about $100 in 1s then some 5s, 10s, and 20s. It also makes it easier to tip your cabin stewards if you wish to, or other crew members. Use credit cards in port; notify your bank before you leave and assume you’ll still have problems somewhere.

You might want to bring more than one pair of tennis shoes as one pair is bound to be ruined after traveling.

Use soft sided luggage/duffel bags only so your bags can slide under your bed because there is no other place for it.

Be sure you bring lots of underwear because laundry can take a long time to get back. You can do laundry by hand in your bathroom sink, and use the clothes line in the shower to dry things on, but DRYING TAKES FOREVER!! (Faculty have a bit more access to laundry services but they often don’t do laundry while in port.)