Half of a dozen people have talked to me about storing extra food in my home in case of a natural disaster recently. I'm not sure if the presidential election is making this top of mind for them, or they can just tell that I am not the type to store food. I've never thought having extra food on hand is a bad idea but is it absolutely necessary? 

When I grew up, we had a full pantry, but we never stored powdered milk, enough canned food to last a few months or bottled water. Due to my recent conversations with concerned neighbors and friends, should I be storing all of these things? If so, what is the easiest way to accumulate enough food and water to last a few months?

I realize many of you were taught how to store food so if you could spill the beans on the easiest way to be prepared for a natural disaster I would love your advice. I would also like to know if you think food storage is necessary.