Nice! Keep it up!!
I'm closing in on 7 years. I happen to remember the occasion- my sister was in town for my son's 1st birthday, so it's easy to remember the anniversary of my last soda. I'd read some Michael Pollan and decided to try cutting out HFCS, and since I don't enjoy the taste of diet soda, that meant cutting out soda. I stopped for three weeks. My sister came in town, we went out for a picnic, and I had a coke with lunch.
I felt SO INCREDIBLY TERRIBLE that I have never been tempted since. So- as of next week, I'm soda-free for 7 years. I can highly recommend it!