I buy many cups of coffee and habitually cringe when reaching for a plastic lid. It’s pretty hypocritical to make a point of avoiding Styrofoam, only to slap a petroleum disc on a paper cup. (And yes, I know that carrying a travel mug would obviate the issue.) Fortunately for me (and my eco karma), a designer named Peter Herman has come up with a greener, all-paper disposable cup that folds closed like a takeout container to form a sipping spout.