Has anyone ever hand-washed a king-size comforter at home with good results and if so, how did you go about it? Our washing machine isn't big enough and I really want to avoid going to a laundromat in the current environment, but our comforter is getting very icky around the edges especially. I have a bath tub and a standing shower and open to any ideas (including the "you'll hate yourself, don't do it" advice).