I can't believe all the hyper-ultra-super-mega-lightweight backpackers amongst you haven't discovered Thneeds yet.
All you need is a Thneed:
"A Thneed's a Fine-Something-That-All-People-Need! [size=0pt] It's a shirt. It's a sock. It's a glove. It's a hat.
But it has other uses. Yes, far beyond that.
You can use it for carpets. For pillows! For sheets!
Or curtains! Or covers for bicycle seats! "
(taken from Dr Zeuss, The Lorax)