What kind of a smoker were you, that your fingers got stained?
Boy, was I a dumb kid!
A couple martinis a day, thins your blood, and a little alcohol is recommended by most doctors. But at my age I'm cutting back, so now I'm switching to 'box' wine, less alcohol per glass you know. It's a strategy that worked in kicking the smoking habit.
Seriously, have you ever blown smoke rings? If you try to 10 minutes after a cigarette, you probably could eke one out, that's the puff I'm talking about.