An invention idea

Suppose you had a washing machine that attached to - or part of it was - a clothes line. Clothes would go in one at a time, on pegs; this very small machine would wash them in a very small and efficient way, then send them out to dry in the sunshine. One would want a way to use it by itself (without the line) during the winter, or rainstorms, or whatever; but maybe they could be made small enough and cheap enough (not at first, I'm sure, but eventually) that it would be affordable to have a conventional washing-machine as well. Or maybe the laundry line could be inside during those times, as I saw in Europe... NW