Take the snail out of mail

Snails love eating mail in my letterbox. Here’s how to cut them off at the pass! You need about 1/2 cup of finely crushed eggshells. To make these, wash 2–3 dozen eggshells on the inside to remove traces of egg white, then allow them to dry in the oven while it’s still hot after baking. Put the eggshells into a sturdy snap-lock bag and whack with a rolling pin to finely crush them. A mortar and pestle will work, too. Coat a flat piece of cardboard with a strong clear adhesive and apply your crushed eggshells to the glue, making sure to add extra shell grit as you go, until it is completely covered. Then stick the cardboard to the underside of the letterbox, avoiding the drainage holes. That’s it, job done. Bye-bye snails!