Speaking as someone who has washed clothes:
a)in the river
b)in a tub on a washboard
c)on a standing washboard of cement
d)in a sink, rubbing them betwwen my hands
e)in a wringer washer
f)in a laundromat
g)at home, in my very own automatic Maytag
I'll take g any day. I do love the smell of sun-dried clothes, as long as the birds stay away. I gave up hanging outside when the mulberries are in season.