Plastic bags
http://www.happypreppers.com/bags.html
Learn how to use a plastic bag to survive
Survival with a plastic bag is possible in many ways. With a plastic bag you can make cordage, collect water, stay warm and much more. Here's specifically how to use a plastic bag for survival...
That "Thank you, have a nice day!" plastic bag could be a life saver, so don't throw it away. Below are dozens of ideas on how to use a plastic bag for survival... ---CONTINUED---