Hello All,
I have been traveling abroad a lot in the past years. I work with nature conservation, so some trips involves visits to wilderness areas.
I'm now waiting for a flight in the Japan Central Airport. Going home after two weeks in Nagoya. Typhoon Chiba has just missed japan. I think it is a good oportunity to check, and share with you, what I'm carring ....
On person or carry on luggage:
Hiking boots
extra cloting, including fleece jacket and waterproof jacket and pants, wool cap and extra socks;
AMK heatsheet;
Pocket plastic poncho;
waterproof Bag
trash bag
Tikka XP flashlight
extra bateries for the flashlight
compass
Whistle and photon mini flashlight in a keychain
Palm Tungsten tx PDA, loaded with maps and satelite images for Nagoya and the region (in jpgs files, to be available offline)
casio protrek watch with altimeter, barometer, termometer and compass (used the compass a lot in the subway in Nagoya!)
cellphone (6 bands, GSM and 3G)
japanese phrasebook
some paper maps (free ones) for Nagoya and Region
A ziplock bag with: (some band aids, soap, hand sanitation towels, toilet paper
A small roll of duct tape
Small amount of nylon cordage, and a small carabiner
water bottle (pet coke bottle i have just drink

In my checked baggage:
DR PSK
ferrocerium rod
Leatherman squirt
victorinox minichamp
More clothes
I didn't bring a bigger pocket knife because I was concerned about what I read about the knife laws in Japan. In general I carry a 2 to 3 inches folder. I still need to buy a non locking one for countries like UK.
It is important to say that I haven't had any problem with the above equipment in any airport around the world(Including USA, Europe, South Corea, China, Colombia and others....)
In the South Corea customs declaration they asked about knifes, but when I showed the small pocket knife I was carring (Gerber Mini Fast Draw), the Customs official said it wasn't a problem.
Fabio