I started smoking regularly at age 16, and was a pack+/day smoker through age 50. In 2009 I tried the then-available e-cigs – separate battery, atomizer, cartridge – with the desire to quite smoking. They failed to provide sufficient nicotine to reduce my urge to smoke; I gave up on them after a week or so. In December 2012 a co-worker demonstrated the next generation e-cig to me and convinced me to try it. I did not intend to quit smoking, I was just interested in how the technology had advanced. For the next two weeks I used both the e-cig and cigarettes. The e-cigs provided enough nicotine that my urge to smoke was satisfied, and I gradually stopped lighting up. After two weeks I had one cigarette left from the last pack I bought. I still have it. I started with 24 mg/ml e-juice. Now, 16 months later, I’m vaping with 12 mg/ml e-juice. I’m hoping that in another year or two I’ll be down to 0-nic and/or quit vaping entirely.