Well done mate. Packed in 40 ish a day 1st Jan 2007 and best thing I ever did. Experienced weight gain, bit of quite noticeable depression, and had to re-programme my brain! Got into habit of all those trigger cigs, the pint, the phone call, the after meal.
Going to Canada winter 2006 did it for me, their smoking ban kicked in before ours and standing outside in -20 or so made me realise it was ridiculous. Like many have said previous can't trust myself with odd one, haven't had a drag since giving up. My wife is great, every couple of months buys 10 for a night out, then doesn't touch them until the next one, I envy that sort of control!