I've only been smoking for about a year and a half, and i normally smoke up to 5 bowls in one sitting. How many bowls do you smoke?
I can stretch a bowl out to last for a while if I'm by myself hitting it periodically. Sure with friends I can smoke a lot too, but more often than not, I end up smoking too much and get sucked into the couch for hours at a time..... If I take it easy I can still function normally while maximizing the longevity of each sack I get.