Reply #5: yup. Hubby quit immediately too. I've had them since 11-11-08 and here's what I know

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get a USB powered batt and a USB portable power supply and use the batteries for back ups only or when carrying a power supply is a pain

get the juice and empty cartridges, fill em yourself and top them off often.

clean the atomizers daily with canned air or at least blow them out and let them drain daily, and make sure to have a couple you rotate and a new backup always ready. If you huff them tooo hot, the wire breaks, so switch them back and forth to make sure they don't get too hot.

I still am smoking about 1/2 a pack a week, but that's a far cry from my 2 pack a day habit and we just remodeled so the house doesn't stink anymore (unlike my car sadly...)