3-5 times all the way. Twice a day is vastly different from thrice a day. When I only toke twice in a day, i feel like i'm in a famine, and have to pick perfect moments to blaze that would separate the day evenly. But three times is flexible. My reason is that I always toke my 1st bowl at 1:00pm or so. If I'm only rationed for two sessions that day, I feel the urge to toke again at around 5:00pm, but have to delay gratification until a time of day that is close enough to bedtime in order that I can sleep properly.
But if I know I can smoke three times or more I can toke at 1 and 5 on schedule, and as the day runs out I can smoke at my own whimsy