Related question: why does it have to be perforated into squares? Who has ever used one square? I mean, it's not like the material is so tough to rip it needs perforations. Why not a long rectangle, since that's probably what everyone uses (ie, several squares worth). Think of the $$$ and energy that would be saved if the perforating machines had to go ka-ching one-fourth of the time. No wonder gas prices are so high.
And don't you just love toilet paper commercials? So sanitized, so distracting from the purpose of the product. Next time you're watching one, use x-ray vision to peer through all that jingle and envision the product in use.
Madison Avenue at its best, folks. lamo