Nope, I don't actually use it every day. It's just to reset the schedule and then I just fall asleep without. As far as I know you don't build up resistance or anything like that if that's what you're worried about.
The most I’ve needed is four days after London to SF. Oddly, even Hong Kong to SF wasn’t that bad.
Occasionally, we’ll have a couple of late nights hanging out and then I have to fix it again. Holiday season like now will probably need work. Then it’s just two days.
