There are many people who plan ahead for a time when disaster strikes or when social unrest causes people to go through very difficult times. In planning for those days, many of them will consider the types of survival tools that they need. This may differ, depending upon the circumstances. In some cases, you may need an area where you can stockpile food and water safely in the event of a large-scale disaster. In other cases, it may be a matter of having a flashlight, an emergency radio and some rope available for your needs.