I almost always have something to sip on while I smoke: coffee, tea, kumis. Biotene is in the medicine cabinet if needed but with experience of drying the tobacco enough and better smoking technique it's been months since I had to use biotene.
Several ebay and amazon sellers have it. Deer Tongue used by several pagan groups so check with wicca and druid sites; just make sure you order the leaf because the root is sold as well.
Retrohaling usually refers to bringing smoke into your mouth and exhaling it through your nose. Some blends you pick up flavors better this way I've found. Probably absorb more nicotine this way as well.
Actually it just says "I ferment my mother's urine and drink until I pass out" so instead of alcohol maybe something magical like fermented perique? Who wants to go on a fermented urine trip??? Does it taste like snozberries?