Use a rain poncho or simple plastic tarp to make a shelter in 3 minutes with this easy idea.br br This shelter uses your backpack as support for the shelter itself. This protects the backpack from the weather as well as yourself.br br You can use a rain poncho or plastic tarp to make this simple easy up and easy down shelter. All you need are a couple pieces of rope or stakes.br br Carabiners on your backpack help fasten the poncho to your backpack faster.