Depends on how much Adderall I'm on, how excited/wired I am, how stressed out I am, or the social environment.
I typically smoke 1 pack every 2-2.5 days on average. Lately it's been 1 pack every 1.5 days. I don't smoke indoors though, so as the brutal NY winter approaches, I actually smoke a hell of a lot less because I don't like feeling my fingers freeze as I hold the cigarette.
You can only quit if you really want to, just like with any other type of addiction. It's completely up to you. I quit last year for 3 months, but started again because I missed it.
I have a feeling I'll be quitting for good in 2007 because I want to start playing ice hockey competitively again, and as good of a goalie that I had been, there's no way I have the stamina with these cigarettes now.