I quit a bit over a year ago. My doc gave me a prescription to take for 2 weeks before quitting, but it was cold turkey after that. The first 2 days were like a 48-hour panic attack. Then it got very easy, surprisingly so. I still get an urge on occasion, but only once a month or so.

In my case it was a tax protest. The last one they stuck in got me angry. Amazing to think how much money I've saved in the past year.