The best way to reduce the amount of juice that you vape per day is to get a smaller device. I have a couple large devices that I use at home, that consume enormous amounts of juice. These days I rarely use them because I was going through gallons of juice a day. Actually it wasn't gallons, but it would be about a third of a 60ml bottle. eventually I got a Smok nord. That helped reduce my consumption a bit, but not enough. These days I just use a MyBlu from Blu ecigs. Now before you think that they are way to expensive to vape on a daily basis, it's not. Granted in my wonderful state of Kalifornia, it does cost around 15 bucks for two pods. But the batteries are only a buck and the pods can be refilled five or six times with whatever juice you like. So the price is not really that bad. But the best thing is that my juice consumption has gone way down. Wayyyyyyyyyy down. The flavor production is really good and the amount of vapor is more than enough to satisfy me. And the other benefit is that I don't have to clean my windows in the car as much. So it's a win, win.