Some of my food storage is the longer-term stuff, like if you were in CT and didn't have power for a few weeks, and then lost it again! This stuff comes in #10 cans, so opening one is a major commitment, not to be taken lightly!
One of my favorite sellers has started selling smaller cans (real metal cans) of some of the most popular ingredients. They average $5 a can, which is not a bad price to learn how to use the stuff and to have some on hand without the major commitment of buying a #10 can. I have experimented with a couple of products as a result.
First one was chopped dehydrated onions. They are great. Unlike the ones in the grocery store that cost about$5 for half an ounce, these are not as dry and rehydrate into pretty regular chopped raw onions. They saute and turn golden brown just fine. I'm sold because they also don't make you cry.
Second item was 'butter powder.' Sure, powdered butter -- or so I thought. No juke, this stuff is great but you must follow directions! After my first try I read and followed the instructions. It was butter! It even MELTED on a hot biscuit, unlike even some of the grocery-store products. I would NEVER have bought or opened a $20 dollar can of butter powder to find out thislittle fact, but could afford $5 worth of experiment. I now use both opened products in my regular cooking, or will until the cans are empty. It's nice not to have onions that are too far gone (surprise!) or butter that has taken on new flavors after sitting in the fridge a while. I'm thinking these cans may actually be more 'frugal' than I thought at first, as they may reduce the wasted regular items that sat too long on my shelf.