What do I need to prepare for a free trip to Japan?

Passport and visa; Toilet, if Japanese hotel accommodation does not provide disposable toiletries for guests, you need to bring your own; Necessary items-sunscreen, umbrella (it often rains in Japan), slippers (not provided in Japanese hotels); Tissue or handkerchief: Japanese people use handkerchiefs. There is no toilet paper in the Japanese bathroom. You should either bring some paper towels or prepare a handkerchief to wipe your hands.

Small glass or bottle (thermos bottle): All the water provided by Japanese hotels is ice water, even in winter. So people who can't drink cold drinks should pay attention. It is best to bring your own thermos bottle and bring it after boiling water in the hotel. Japanese drinks are more expensive, but you can drink tap water. You can bring your own small cup or bottle to drink. Adapter: The voltage in Japan is100V, and the socket is a two-pin socket. Cylindrical plug and three-pin socket plug can't be used in Japan, so it is recommended to buy conversion plug in advance. Some hotels have adapters at the front desk. The power supply in Japan is double-headed, and the notebook power supply bought in China is three-headed, so it can't be used. It is suggested that the suitcase should be packed as little as possible except what must be taken. If you want to come back without being overweight, then choose to decorate less when you go.