The first item to go into the stash is the first item to be used up, and then when you head out shopping or running errands you replace the used quantity in the stash. So after eating a can of chili out of your emergency stash, for instance, you would replace the can with another one bought at the grocery. The next oldest can of chili would be the one you draw next time you need chili, and so on. This is known as “rotating” your supplies.

Yes, another non-necessity, but I’ve said it before and I’ll say it again, I like having options and redundancies. We have the smaller version of the Solo Stove – the Titan, and it’s great, though we’d prefer a larger size than we’ve got. Solo Stoves are overbuilt, definitely a one-time purchase rocket stove, looks pretty stinkin’ good for what it is, and while, yes, you can totally have a regular fire-on-the-ground, this is one of those things that helps you out in the you-won’t-need-too-much-wood department. And if you’re at all into greyman survival – well you won’t be leaving a mess behind if you use one of these to contain your fire.
Never put all your eggs in one basket. Store dehydrated and/or freeze dried foods as well as home canned and “store bought” canned goods.  These varieties will help to balance out your cooking options and even add a variety of textures and flavors.  Another take on this point, is to not store all of your food storage in one location.  Instead of having all of your food storage in one location, it may be wise to have other hiding locations.  False walls, under floor boards, another building on your property, at your emergency bug out location or even a storage facility.
While I’m a big fan of mylar bags and 5 gallon buckets, since my family is just two folks (unless extended family make it to the house in an event), I package things up in 1 gallon mylar bags before placing into the buckets. Allows me to open less food at once to the elements. Sure, I have gamma lids to apply afterwards, and the mylar bags I use have ziplock style tops for resealing, but the less I open to the elements at once the better it will last. To further extend shelf life of opened bags, I have a large supply of small silica gel packs that I can toss a few into open dry good bags. Once I finish the bags I can reuse the packs by gently heating in my Sun Oven.
Dehydrating your food is a fabulous way to preserve it. Provided you have a dehydrator, you can dehydrate fruit, vegetables, and meat. Dehydration means to literally take the water out of the food. Without water, the food stays is less susceptible to spoilage. It can be eaten that way (think fruit leathers or beef jerky) or rehydrated and put into soups and stews and other meals.
What’s the bare minimum you need to navigate across land?  For most people, that would be a compass and map.  A basic road map is sufficient to get a rough approximation of the lay of the land.  More detailed relief maps can help plan for elevation and estimate possible water sources but they also take up more room in your pack.  Waterproofed or laminated maps are also extremely helpful.  Lensatic compasses are the most reliable for little money.  If possible, a compass and protractor are also extremely helpful for route planning.  Obviously, not as essential but nonetheless useful.

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This could include things like researching a specific piece of gear to buy to figure out whether it’d be a good investment, or researching the ideal plants for an indoor herb garden. Of course, you can group these in with your prepper to-do list, but separating them out may help you get them done quicker – especially since they can all be done with computer access and thus be done while you’re couch potato prepping, i.e. prepping without leaving your sofa.

“If you’re using it for emergency survival, the fact is you’re going to buy it once, and hopefully you’re not going to use it,” Shields said. “But it’s there as a safety net for you and your family.” That’s what intrigued me about freeze-dried food: You can wait up to a quarter-century to use it, but in an ideal world, you wouldn’t have to eat it at all.