Drink wine out of a box!

What does drinking wine out of a box have to with anything outdoors or travel-related? It turns out that the bag the wine comes in that sits in the box is a great water container for carrying water. We use these on our Grand Canyon Backpack when we have to carry water for one dry camp. Not only are they durable, they are very lightweight and take virtually no space when they're empty. My mom saves them for me; you should ask yours to do the same.-- Marian