I have been a one pack a day smoker of Camel lights. My friend actually purchesed me NPRO as a gift. At that time I knew nothing about E-smoking. After two days of trying it I feel in love. Untill I had to order replacement cartridges. Thats when I ran across this forum trying to find ways I can E-Smoke for less. I don't see any generic carts that will fit the NPRO for a cheaper price. The cheapest I see is $20.00 for 10 original cartridges. But that equals too $4.00 a pack of cigarettes. I also have been reading about differnet types of e-liquids. Can someone recomend an e-liquid that I might like. Thanks for a great website. With out you guys I would be so lost.