There was a time when I was young when I probably went through 2 grams of flower a day. Then I went through a long while when I was busy and didn’t have that much cash, so I cut back to 1 gram a day.
Now I have no idea how much I smoke, I just grab some flower out of my stash whenever my at-hand pile is running low. I suspect it’s around a gram a day, but heck if I know, not like I weigh it or anything.