One of the questions I get most often is how we stay clean without a shower. The short answer is no-rinse shampoo, washcloths, and plenty of wipes. It works surprisingly well for months at a time, though you do start to miss the feeling of water running over your head. On Skylab in the 1970s, crews actually had a shower. It was a collapsible tube you pulled around yourself, with your feet strapped down, that provided about three liters of pressurized water. However, every drop had to be carefully vacuumed up afterward and the whole process took almost 2 hours. Today we use the no-rinse method because it uses far less water and crew time. It works and it's a small price to pay for living in space!
The National Air and Space Museum has one on display in their Skylab exhibit.
The National Air and Space Museum has one on display in their Skylab exhibit.