Do you have enough salt?

Salt has been sought after since before civilization began. The word salary is derived from Roman salarium, or salt pay. It's not just a flavor enhancer, it's a needed mineral that can also preserve food, making it a possible barter item. Since salt is a mineral, it won't go bad (just keep it dry). Every prepper should include salt in their stash, the amount varying with their location and reasons why they prep. Table salt is handy stuff, and having what you generally use is a good thing, but it gets rather expensive to keep twenty pounds or more of table salt, and those containers take up lots of room. Keep table salt for the table.
For pickling and preserving, water softener salt is pure, compact and much cheaper. Be sure to get just salt, with no additives (some water softener salt comes with additives to remove iron). These coarse crystals will work just fine, and can be ground down to table salt fineness with nothing more than two rocks. A big sack of this salt can be had for less than ten dollars.
Using a salt lick to attract game is an ancient trick, but is no less effective today. If your prepping plans include harvesting local animals, it's much more efficient to get them to come to you instead of searching them out. Salt can be purchased in blocks ranging from ounces to fifty pounds. This can be broken up and ground for other uses, but the cost is the same between block and coarse water softener salt, so get the kind you plan on using.