How do people who travel for a long time wash clothes?

If you ask me, it is very easy for people who travel abroad for a long time to wash clothes. As long as they stay in a hotel in the city, they can do the laundry, take it to the laundry, or ask the hotel waiter to help you do it yourself. If you don't want to spend the money, you can also go to the sanitation department to wash the water yourself. These are the ways I wash clothes after traveling for a long time.