I remember but not to the exact day or month. 12 years- I was a less than 1/2 a pack a day smoker.
I remember my decision to quit was after daughter dear was born. My wife decided I could not smoke around the baby and I could not smoke at work, EXCEPT during breaks. I forgot to get a new pack for the weekend, and lit one of the stale and dry ciggies. That was the last time I had one in my mouth.
I remember the month and year because I wrote it down otherwise....