That's one of the things I missed about the old-fashioned stinkies. They had a built-in timer. You go outside, you smoke it until it's gone, and then you're done. With
vaping, you don't have that automatic timer. There's nothing that tells you when it's time to quit. I'd find myself standing or sitting outside for ten, twenty, sometimes thirty minutes if the weather was nice, without even realizing it. Then one day I asked my rental agency if it was okay to vape inside. Problem solved! They basically said "well, we don't have any rules on it one way or the other, so I don't see any reason why not *(we reserve the right to change our mind at any time.)" So now I pretty much just vape all day, as much as I want, and when I want. I don't have to limit it to "sessions" that are separate from one another. I can just pick up my device, take a puff or two or ten, until I need both hands for something, then I put it down again. So I guess my answer to your question, how many puffs do I take in a sitting, is "all of them."