lol, I want to meet the other 30 people who do 1.5 ml or less.
I do not get this... I'm relatively new and recently got my DIY supplies, so I know how much I'm using. 8-10 drops (< or = to .5ml) fills my cartomizer and that lasts me for at least half a week! about 100 puffs per day.
I used to smoke a pack a day and had gotten myself down to 4-5/day but couldn't kick completely until I got the PV.
By the way, I don't know if it makes any difference but I'm using the "Regal" brand of e-cigs... (don't worry, I didn't fall for the huge membership price tag and argued my way into keeping the whole kit because they lied to me and then tried to make me think I had agreed to something I hadn't )
A cigarette has up to about 3mg Nicotine in it
x20 cigs = 60 mg/day (1 pack/day habit)