Today is my birthday, so I had a shower! It was a simple process:
1. Gather snow.
2. Fill and light the large propane heater.
3. Melt the snow on the heater.
4. Carry the water up two sets of ladders to the water reservoir.
5. Repeat steps 1-4 until the reservoir is full enough to support the water needs of the hab plus your shower.
6. Turn on the propane tank in the shower room.
7. Turn on the heater that warms the pipes under the shower, so that the drain doesn't get blocked by ice.
8. Turn on the valves on the pipes.
9. Turn on the hot tap in the shower just a little. If you don't, step 10 might cause a steam explosion.
10. Light the propane torch.
11. Light the inline heater.
12. Turn off the propane torch.
13. Get naked, fast.
14. Turn on the shower.
15. Get wet.
16. Turn off the shower, except for that explosion-avoiding trickle.
17. Suds up.
18. Turn on shower.
19. Rinse off.
20. Turn off the inline heater.
21. Turn off the shower.
22. Dry off, fast.
23. Turn off the pipe heater.
24. Turn off the valves.
25. Put on your dirty clothes.
OK, I'll admit that Simon did the bulk of steps 1-5, but it's still quite a process.
Here's me making my share of 'snow soup':