lol, ya know, I never thought to time myself, but I'm sitting here and I realized I severly underestimated the time between drips. It's probly more like 8-10 drops every 10-15 minutes. I don't keep track. not sure how many mls a day I use either, but a 30ml bottle lasts me probly 4 days. I DIY all my juice, so it's so cheap I don't worry about how much I use. At any given time I've got about 100 mls of flavored juice and about 500mls unflavored base waiting for me. I mix my base at 10mg and flavor up 4-5 30ml batches at a time. I get about, idk, 2 and a half-3 weeks in between juice making sessions? I couldn't afford to vape if it wasn't for rba's and DIY juice, that's for sure!