Much ado about ... red cups?

Slate's Seth Stevenson: "A short while back I was walking through a grocery store when I noticed a radical development. The classic red Solo cup—a keg party staple for nearly four decades—had switched from a round to a square bottom." And so begins Stevenson's article about how this disposable drinking vessel became an American party staple. Ah yes -- the classic article about nothing. It must be Jerry Seinfeld Day. Heh.