Re: your stinky passenger - for reaons I can't explain, I particulary feel your pain this week. Someone should invent small charcoal nasal pellets to filter out bad smells but in a more subtle way than ye olde clothes peg. That, or an ultra subtle whole body febreze or something. Relaxation is very important. I'm told sleep helps. Can't particularly vouch for it, not having had much lately, but it's gotta be worth a try.