The glass is not half full

As I'm doing laundry tonight the thought once again crosses my mind, "stinkin' weasel marketers," as I contemplate the merits of the detergent bottle cap. In general, the cap's fill line for a load is about 3/4 up the cup, and sometimes just half the cup, but how many people fill the cup? Probably about the same that put the toothpaste over the length of the bristles instead of the pea-size bead needed. This peculiar aspect of human nature to fill to capacity is fertile ground for corporate profit.