After well more than a decade in orbit, NASA is finally trying to change that. The agency has commissioned Oregon-based UMPQUA to build a prototype low-power, low-water washing machine that would allow ISS residents to do their laundry. This would probably beat the usual protocol, which mandates that astronauts wear the same undergarments until they can't stand it and then pack them into a used Progress capsule to be incinerated in the atmosphere (though that's probably a legitimate fate for underwear that's been worn to the olfactory breaking point).