I recommend that the very first step you take when prepping is to evaluate the most likely risks specific to your geographical area and your personal domestic situation. Most, if not all, city, county and state governments will have emergency management websites that will help you sort through the most likely disasters to occur in your area. Take advantage of these public resources.
After 9/11, my dad filled a duffel bag with some energy bars, a couple gallons of water, some penicillin, and a map. Amid scaremongering headlines about imminent anthrax and “dirty bomb” attacks in the city, he wanted to have some supplies on hand in case we needed to get out of Brooklyn fast. Were he to assemble such a bag today, he’d likely stumble on a number of companies promising a more wholesale brand of disaster preparedness: a box full of shelf-stable freeze-dried meals, to be revived from their dessicated state with the addition of boiled water.