By request of the PDA sysop, below is a checklist that I keep in my palmtop.  
I mark off the items I need to bring, then mark them off as I pack them. 

-Dave Goodman

HAVE NEED DESCRIPTION
==== ==== ===========
[  ] [  ] MAPS
[  ] [  ] TOUR BOOK
[  ] [  ] ROAD CONDITIONS

[  ] [  ] CASH
[  ] [  ] PASSPORT
[  ] [  ] TICKETS
[  ] [  ] RESERVATIONS
[  ] [  ] NEWSPAPER DELIVERY SUSPENDED
[  ] [  ] HOUSE LOCKED UP
[  ] [  ] HEAT/AC TURNED DOWN

[  ] [  ] SHIRTS
[  ] [  ] PANTS
[  ] [  ] SOCKS
[  ] [  ] SHOES
[  ] [  ] SWIM TRUNKS
[  ] [  ] UNDERWEAR
[  ] [  ] T-SHIRTS
[  ] [  ] TIES & TIE-TACKS
[  ] [  ] FANNY PACK
[  ] [  ] SNORKEL
[  ] [  ] BACKPACK
[  ] [  ]
[  ] [  ]

[  ] [  ] TOOTHBRUSH
[  ] [  ] TOOTHPASTE
[  ] [  ] SHAVER
[  ] [  ] DEODORANT
[  ] [  ] HAIR BRUSH
[  ] [  ] HAIR DRYER
[  ] [  ] SHAMPOO
[  ] [  ] CONTACT LENSES
[  ] [  ] LENS SOLUTION
[  ] [  ] EYE GLASSES
[  ] [  ] EAR PLUGS
[  ] [  ] SUNTAN LOTION
[  ] [  ] DAUGHTER'S DECONGETSTANT
[  ] [  ] DAUGHTER'S ASPIRIN
[  ] [  ] CHEWING GUM / CANDY
[  ] [  ] WIFE'S INHALER, GLASSES, MEDICINE

[  ] [  ] FLASHLIGHT
[  ] [  ] SPARE BATTERIES
[  ] [  ] PALMTOP COMPUTER & ACCESS.
[  ] [  ] COMPUSERVE ACCESS NUMBER
[  ] [  ] AC ADAPTERS
[  ] [  ] BRIEFCASE
[  ] [  ] BOOKS
[  ] [  ] FOREIGN LANG. DICTIONARY

[  ] [  ] CELLULAR PHONE, ROAM NUMBER
[  ] [  ] SCANNER
[  ] [  ] HAM RADIO
[  ] [  ] REPEATER DIRECTORY
[  ] [  ] PACKET INTERFACE

[  ] [  ] FOREIGN VOLTAGE CONVERTER
[  ] [  ] TRAVEL CHESS SET
[  ] [  ] BUSINESS CARDS
[  ] [  ] NOTEPAD

[  ] [  ] CAMERA, FILM
[  ] [  ] CLOCK/RADIO
[  ] [  ] TAPE RECORDER, TAPES
[  ] [  ] CD'S, PLAYER