One of the smartest things preppers, survivalists and other end-of-the-world types do is keep a supply of shelf-stable food. Here are some other things you could do:Create your own emergency foodYou can take a tip from survivalists and create your own emergency food for much less than pre-packaged meals will cost you. Just buy a case of Mason jars and a supply of oxygen absorber packets. As the name implies, oxygen absorber packets remove oxygen from the container and prevent food from going bad. When the a hurricane hits and/or you lose power, you will have a supply of food ready to go for yourself and your family.