I'm not kidding
People did that in 97 or 98- whenever the really wet festival happened and others who had made little provision for wet weather bought them. A couple of rolls will take up fuck all space in your bag and you may find them useful yourself if it rains to stick at last one full change of clothing inside to keep it dry.
( Lord Gnome, Tue 21 Jun 2011, 0:11, archived)

Really, I'm on it.
It sounds like a good idea.
(rnuk http://flickr.com/rnuk, Tue 21 Jun 2011, 0:28, archived)