I am a smoker, however; I do not smoke on flights, in dining establishments, or in non-smokers households. I DO object to people giving me a glare when I smoke outside, in a parking lot filled with gas guzzling vehicles producing more harm to their lungs than my tiny wiff of smoke!
BUT...having tried to quit many a time, I realize as a non smoker that you can really smell and inhale cigarette smoke from a great distance. Which is probably why I have a hard time trying to quit! No one should be subjected to offensive smells.
And on that subject, I suggest that all PERFUME, especially Ralph Lauren's (sp) be totally banned on all flights! I spent the most agonizing hour of my life next to a person whom I'm sure never showered, only to find out a lot of men wear that certain cologne. To me, it STINKS!
I grew up on a farm, I can handle almost anything when it comes to stink...but not that indiscibable smell of what ever it was posing as cologne.
And this goes for ladies too! I've tried a few perfumes where I hated myself on the drive home, couldn't wait for a shower!
Final answer, ban smoking.
Nicotine patches are available, they work, and it would make life in an enclosed environment better.
But also consider the ban on fragrance as well.