I've always just kept them separate and thrown in a box. Why not try making a velcro band/strap to hold them.
The advice about how to roll them is bang on.
I think you'll find that I have contributed a good bit more than those three words.
They might have been only three words, but they were not as pointless as the words that I'm replying to.
Do try to keep on topic instead of stooping to insults.