Myself I can go through 5 mls at work then several more the rest of the day so at least 10mls of 12 nic a day. On a day off sitting infront of the comp and leisure I can vape 15+ mls, when drinking I vape even more. My wife vapes 8-10 mls of 6nic a day also. I vape kayfuns with 1.0-1.2ohm coil builds and my wife's protank is 1.5-1.8ohm builds. With me building coils and DIY my own
juice it really doesn't cost us much to vape anymore. I've already spent the money on our gear so we will be riding the wave for a long time to come unlike ciggys that the price keeps going up and being a continuous payout for cigs. We broke free of a 25 dollar a day habit so vape as much
juice as you want cause the price point will NEVER equal that of smokes.