Store fruits and vegetables that you dehydrste. Either things you grow or are on a deep sale at your local farmers' market or grocery store.

Store bulk goods like coffee beans, sugar, flour, and so forth. We have a 2-jar system where when one gets emptied, we send it to the store to get refilled. That way we always have some of each ingredient in stock.

I use them for storing all kinds of dry foods. You can also use them with a vac sealer attachment to vac seal food such as nuts, dried fruit, grains, anything. This prolongs their shelf life.

Home can protiens. Make sure you have enough available to save freezer foods in case of longer term power outage. Did you inherit them, were gifted them, how did you come to have more than you know what to do with?