Smoke as much as you can without interfering with things you need to do.

But most things can be done while high... cleaning the house, walking the dog, menial jobs... but if you're a cardiologist then I might say refrain for about eight hours before doing open-heart surgery...

I have a day job where I need to be sober, so I smoke 1-3 bowls/night when I feel like it. No need to limit yourself unless you can't afford it financially.