Preparing your belongings

When traveling abroad, you can expect to bring a lot more things than when traveling domestically.
Moreover, they must be stored neatly in a suitcase or bag, so I would like to carefully select and bring the necessary and sufficient items.For reference, I've listed below the essentials that are easy to forget to bring and the ones that are convenient to bring.

Easy-to-forget essentials
Rain gear: Even in foreign countries, I don't know when it will rain.Put your umbrella and rain gappa in a place where you can take them out at any time.
Toiletries: May not be available at the hotel.It's a good idea to bring a few towels.
Medicines: When you feel sick, the medicines you are accustomed to taking are the best.
Transformer: Since the voltage of overseas electric outlets is different from that of Japan, a transformer is required when using Japanese electric appliances.Hair dryers are found in most hotels, but don't forget the transformer if you bring your own.
Copy of passport, copy of family register, photo for passport, etc .: If you lose your passport locally, you will not be able to return to Japan without it.
Credit card or Traveller's check number copy: Required in case of loss or theft.

Things that are convenient to bring
Laundry items: If you wash your underwear and handkerchiefs at the hotel, you can reduce your luggage accordingly.It is convenient to have a small amount of detergent, clothesline, clothespin, etc.
Can opener / bottle opener: When you buy canned food or drinks locally, this is a surprising problem.
Eye masks / earplugs: For those who want a good night's sleep on an airplane.
Overseas mobile phones: The mobile phones you normally use can only be used in Japan.To use your mobile phone overseas, rent a dedicated mobile phone or contact the mobile phone company you are currently using and have them switch the settings so that they can be used overseas.However, the charge will be considerably higher than domestic calls.
Japanese taste: Instant miso soup, Japanese tea, pickled plums, etc. do not have to be bulky.

* Precautions
Clothes: In places where the temperature difference between morning and evening and daytime is large, it is better to wear something.Also, check the dress code for the actual competition.You don't need to be fashionable as you may notice pickpockets.
Pickpocketing measures: Overseas, the crime rate is higher than in Japan, and there are pickpockets targeting Japanese people.Keep cash to a minimum and don't put it in your outer pocket or pochette.Put a chain on your wallet and do not carry valuables with you as much as possible.
Attention to the surroundings: Always be careful with your bag or suitcase and don't let your guard down.It is better not to go out alone or go sightseeing more than necessary.It is often said that localization is sober and unobtrusive.