Shop local stores and buy more cast iron pans and other cast iron cookware items as your see them over the next few months. The more cast iron cookware items that you have the more versatile your cooking options are for your household.
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Also buy some cast iron cookbooks as well, those will be extremely helpful for your households as the harder times approach. Start getting more cast iron pans and set up a mini shelf in your kitchens filled with various cookbooks, canning books, cast iron cooking books and so forth, books are priceless folks, if you have them in your household you cans use them any time that you need them.