Here is the reverse of the washup toilet and washing machine combo. And by reverse we don't mean the toilet water is being used to wash your clothes. Yuck. We are talking a sink and washer combined in a very small footprint for compact living spaces.
It's not clear if there is some sort of water purification happening here or if the space saving aspect is the only benefit, but if both were true, this would be a perfect solution for a space challenged apartment. When you go to take a shower, your dirty clothes can go directly into the machine rather than being moved from hamper (or floor depending on your style) to washer.