Things to carry with you Here are a few thing to bring on your person in order to make your PCS as comfortable as possible: American dollars to exchange for Japanese yen Several copies of your orders Information Protection training certificate (to expedite setting up your network account) Sponsor's cell or home phone number. Having access to messaging on social media can also be of great help upon arrival in Japan as most cell phone services will cease to function. WiFi is available at many airports. Families with children should bring toys or chargers for games. Delays are common and flights are long.