There is this fantastic nineteenth century tech that i came across, which i think could be improved upon by using lightweight modern carbon stuff, like in a bicycle. It is a laundery wringer. You attatch them to a bucket, and then you place your wet laundery in them and use a crank. It must be of such length that the process does not become toilsome. It removes 95% of all water. Then they hung up the laundery in those days when they were in use, and they dried much quicker. If mass produced, students could just have one under the bed, and fetch it when needed. The problem is that those i see are too expensive and in steel, which means heavy and cumbersome. If Musk could ditch this pointless and overly expensive migration plan to Mars, he could solve this high-tech issue and have them sold at low cost to students?