Go, John! Hang in there, Giz...
Pretty soon you'll get disgusted at the way the car smells and clothes after sitting in a room with smokers. Day 4:

Mild inattentiveness, occasional crossing of eyes, searching pockets for lighter, arm-twitching and fumbling at shirt pocket during phone calls, apres-sex, apres-food, when the wind changes...
something to think about!
Gawd! I think about that, I'll hide in a sensory-deprivation chamber for hours!
I haven't smoked a cigarette in over a year now and I don't want one either.
That's how it's done!