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The next time you boil a dozen eggs, save the water and pour it on your garden and plants. The water becomes enriched with calcium when the eggs are cooked. Plus, why pour water down the sink when you can reuse it for something, right?
Eggshells Use: To control blossom end rot. How to make it: Take the shells of four eggs and crush them. Mix these shells into the soil around each plant. Why it works: The calcium in eggshells will dissolve slowly into the soil, where it will be taken up by the plant's roots.