3. Save Your Eggshells
Here’s a video on how to process eggshells so you can eat them - terrific source of calcium. I would imagine the calcium powder you end up with would be great in the garden.
https://www.youtube.com/watch?v=j4qB54PlCoA
I never thought about eating them. If I have too much calcium, all it does is add to my bunion, LOL! (TMI!)
I started saving them, already. I crunch them up and mix them with bone meal and put 3/4 cup in each planting hole for tomatoes, peppers, zukes & cukes. No Blossom End Rot problems, ever.