Laundry was for 50 years often mailed. Until the 1960s, many US college students mailed dirty clothes home for moms to wash and mail back (often including food), using reusable boxes and USPS parcel post. Modern washing machines that made washing clothes locally easier ended laundry mail.
Ancient Romans used ammonia from urine to wash togas in a manner similar to modern day dry cleaning, and the collection of urine was taxed.
Rather than wasting water on doing laundry, astronauts on the International Space Station eject their dirty worn clothes into space to burn in the Earth’s atmosphere.