I so need to try this. When I was in the Master Gardener program we used the water crystals in planters and I knew it was the same thing in diapers, but it never crossed my mind to put a diaper in the bottom of one. Someone else said, "The trick to amazing potted plants - diapers. I did this in my hanging baskets last year and they rocked all season."
Each time you crack an egg open, instead of tossing the shell into the trash, drop it into an open container that you keep in the fridge. When the container is full, crush the shells into small bits and sprinkle them around the base of your plants. The sharp eggshells will deter slugs, snails, and other bugs from nibbling on your garden and add a touch of calcium to the soil.
"If you're not exactly a plant whisperer, club soda will change your life! Give it to your plants to quench their thirst. The nutrients in club soda (sodium citrate and potassium sulfate) will help enrich the soil. Like steroids for your plants - but without the chemicals."