This is so big, I don't know how to say it. So I'll write it instead: A revolution in toilet paper is coming. (Yes, t.p. revolves as you spin it, but that's not the kind of revolution I mean!)
I've got one word for you: Tubeless. Or maybe it's TWO words: Tube-free!
And how cool is it not to waste all that cardboard? In fact, writer David Moye suggested to Kenn Fischburg (who runs the ToiletPaperWorld.com site) that it might be the "Roll-y Grail" of toilet paper inventions. (Good one, David!)