Lemon juice also helps with oder. I was using vinegar because I was out of lemon juice and my stem smelt horrible after just a few washes. I just use lemon juice because it works better then vinegar lol. I also use the combination of lemon juice and baking soda every 3 times my hookah is used.
Sam Booka has a couple cleaning videos at: http://www.youtube.com/profile?user=hookahpro