Egg Shells, Coffee Grounds and Potato Water In The Garden
Sprinkle egg shells or coffee grounds on the soil of your garden or houseplants. You can also pour the water that you used to boil eggs or potatoes, after it cools of course, in the soil around plants to add minerals.
Plants will love these additives and it's a great way to be "green" and help the environment. Reduce, Reuse, Recycle!