Recycle and fashion a couple common kitchen items into an eco-friendly earwig trap. Save the cardboard cores from rolls of paper towels. Fill with straws and if you like, wrap the outside of the core with packing tape to prolong its use in the garden. In the morning, lift the trap and tap it over a bucket of soapy water. The earwigs will fall out of their hiding places in the straw, drop into the soapy water and die.