if you're looking with an eye to a natural disaster, keep in mind what my bff lds friend reports that the church has been cautioning members for years-no amount of food that is not consumption ready/prepared for consumption will do you any good (this is largely due to the realization that allot of members were stockpiling grains to turn into flour, but few had the equipment to do this, or when challenged to do so at group gatherings were able to).
with that in mind-if you lost power to your home, would you have a means of keeping stockpiled frozen/refrigerated items safe? would you have a means to cook food if you were without power to stove/oven/microwave? unless you're going to bite the financial bullet and invest in a generator (we did, best money we ever spent), do you have a bbq or camp stove AND a safe place to use it in inclement weather? If not, first figure out how to keep the food safe (perishables), and how you will cook it. also make sure you've got stuff to cook on/with-allot of what we use on our stovetops/in our ovens will shatter or melt if used on a bbq or camp stove, so some good old cast iron or all metal pots and pans work well, and if you are a coffee addict like us-an old school campers coffee pot is a life saver-with ground coffee (we had a week long power outage and record snow a few years back-our neighbor was going nuts b/c while he had the coffee pot his electric bean grinder was out of commission, luckily we had an old hand grinder we were able to loan him).
once you've done start identifying space for storage-under beds works, spare space in closets, those pesky upper cabinets in the kitchen that you don't normally store stuff in cuz you'd have to get a ladder out to access them. we use our garage (it's insulated so I don't have to worry about extreme heat and cold fluctuations). I take advantage of a couple of our grocery store's yearly case sales-I keep a variety of canned beans on hand (most have sodium in them so it helps with the salt issue),tomato products, some canned fruit, soups, and corn beef hash. I can also-so we always have applesauce at the very least, and usually some tomato products. I use it as my regular pantry so rotation isn't a huge issue-I'm using stuff and restocking on a regular basis.
we also keep several flats of water on hand, and I'm pretty dogged about making sure that we always have at least 2 weeks worth of every prescription and otc med we regularly use/might need.