Wow, I can't believe how many use more than 2 ml per day! I use my BE112 atty on a 3.7 900mAh mod ALL DAY LONG. I am self employed with no restrictions when I can vape. And I literally have that thing between my lips constantly. 30ml lasts me 3 weeks and I don't think it would be possible to make it only last 2 weeks or less.
I'm guessing there must be lot of waste happening in those cases. I pride myself in being the most efficient with my supplies as I can be, which is why I drip exclusively. My wife refills M4 carts and she's always blowing out overflow. She doesn't use her e-cig as much as me but her 30ml bottle lasts about as long as mine and I know its due to leakage, etc. But holy chit!!! 8ml per DAY????????? Might wanna streamline the system bud

. I'm not judging, just sayin.