Aboard the Vogon Ship

1. This puzzle has more clues than a Hitchhiker's Guide Mark IV has options.
2. Have you tried pressing the dispenser button?
3. You need to block the small hole.
4. Let's hope you aren't stuck here, because it only gets harder.
5. It has something to do with the hook above the hole.
6. You need to hang something on the hook.
7. Examine the gown.
8. Notice the loop? Hang the gown on the hook, then press the button again.
9. Well, you've made a little progress. Don't give up now.
10. You'll have to block the drain.
11. There's only one thing large enough to completely cover the drain.
12. Cover the drain with the towel, then push the button again.
13. Oh, well. Forging ahead, you'll have to block the tiny robot panel.
14. Standing or lying in front of the panel won't work.
15. You'll have to put some object in front of the panel.
16. If it isn't bulky enough, the cleaning robot dashes around it.
17. Examine all the objects around.
18. The satchel is bulky. Put it in front of the panel, then push the button again.
19. At this point, brave men have been known to break down and cry.
20. Read, very carefully, the paragraph when Ford goes to sleep.