What do you need to prepare for a trip to America? What preparations do you need to make to travel to America?

Some things to take when traveling to America. For example, emergency telephone numbers and travel cash are expressed in dollars or international currencies. Credit cards are necessities in America, such as watches and electrical appliances. If necessary, take medicine for colds, airsickness and stomach, and bring it yourself according to your personal situation. According to American environmental law, the hotel does not provide slippers, pajamas, toothbrushes, shampoos and shower gel. Please bring your own toiletries. Tap water can be drunk directly in the United States, but hot water in the tap can't be drunk. All hotels in America have no hot water supply. You like to drink hot tea, bring your own hot cup. Even if it's not summer, people staying in high-end hotels should wear swimsuits. It's best to buy a calling card when making a phone call in China (the hotel phone is expensive). There are instructions on the back of the calling card. Try not to use the hotel room phone, but use the public phone in the lobby. Calling home is 011.8621.8 digits, and the mobile phone is 011digits. You can buy it from the delivery man. American service workers make a living by tipping. According to local customs, members should tip the hotel cleaner 1 USD and the driver and his entourage $5 every day. Everyone carries one piece of hand luggage, and the size and weight are strictly limited. The luggage is handled by himself. Porters are used in foreign airport restaurants, and I pay a tip, usually $2/time.