It's funny how many people think this guy is serious.
(Inb4 "this is serious!")
You failed, I mentioned how serious I was above. Just one post.
No one agrees with my suggestion? Awww

What about washing clothes? Can I use dwarven machine oil to clean out the dragon blood after a hard days killing them? It would give it a stain resistance quality. There could be other types of sop to clean your clothes and armour.
Edit
YES! An ally appears. Dragatus. We need a few more and we could start some sort of petition group to get feet hygiene in the game.