0 1. Various certificates and ID cards: air tickets, boat tickets, hotels or special identity checks. Passport: People who travel abroad will use it. It contains all personal information. You must show it when you go in and out of the customs. Remember to take it with you. Driver's license: it will be used when renting a car outside. Travel itinerary: hotel, flight and other reservation information. Luggage tag: a small sign used to fill in personal information and emergency contacts, which is tied to the suitcase and hand. In case the luggage is lost, the airport can send it back through the emergency contact after finding it. In addition, prepare a multifunctional wallet to store cash, bank cards, tickets, etc. 02. Use some small local banknotes and coins instead of cash and credit cards to buy small items or tip. If you stay in a hotel or go to a fancy restaurant, of course you will pay by credit card. Take less jewelry when going abroad to avoid exposing money and meeting criminals. It's the most convenient to take a credit card, and some stores can get discounts by swiping it. 03. Commonly used drugs: anti-inflammatory drugs, band-AIDS, sesame oil, cold medicines, painkillers, carsickness medicines, antidiarrheal medicines, etc. You can buy a suitable medicine bag, which is convenient to carry and does not take up space. Some countries have regulations on bringing drugs into the country. Please refer to the customs policies of various countries for details. 04. Travel daily necessities If you go to a hot place, you can bring some quick-drying clothes. If you go to a cold place, you can take a jacket, wool, sweater, jeans and other dirty clothes. You also need to bring towels, sneakers, portable U-shaped pillows, masks, goggles, sunglasses, umbrellas and other items. Besides, it's best to prepare daily necessities that don't take up space, such as hanging gargle pockets and telescopic mouthwash cups. 05. Electronic equipment: mobile phone, charging treasure, tablet, earphone, charger, camera (the photographer's professional camera bag also includes lens, tripod, spare battery, cable, memory card, etc. If you go to extremely cold areas, you need to protect your lenses to prevent freezing. A notebook with travel tips and a pen (multi-refill) can be used to record every bit of travel. Those who love painting can bring a sketch book. Hiking suggestions: hiking bag, thermos cup, outdoor watch, GPS or whistle. When going abroad, the mobile phone needs to be set up with global roaming, conversion plug, local mobile phone card or flow card. 06. Travel bags can be divided into big boxes for clothes, suitcases with locks and light backpacks for travel according to the distance to go out. If you are going on a business trip for several months, prepare a backpack. It is best to have a professional bag with a backpack system. It is very convenient to prepare a small bag for all luggage except backpacks or suitcases, and put small items such as documents and mobile phones.