Keep egg shells in open container in fridge. When the container is full, crush shells into small bits and sprinkle them around base of your plants. Sharp eggshells will deter slugs, snails other bugs & adds touch of calcium to soil.
Very detailed instructions on how to plant a better tomato plant. If you are as fussy about tomatoes (No to Hothouse ones!) and get tomatoes only in the summer and only in your garden.you'd want to make a better tomato plant, too!