I don't chew gum often, but when I do, I chew the whole pack...

[user113]

I add another piece when the flavor is gone from the last one. It eventually gets too hard to chew the whole lump, and I give up on gum chewing.

I just know they have the technology to make gum flavor that lasts forever, but they're holding it back because it would kill gum sales if you only ever had to buy one piece of gum.