Your trusty cooler gets a workout over the Summer months. If yours is smelling funky, try cleaning it with a  generous sprinkle of baking soda inside and let it sit closed overnight. In the morning, spray with a mixture of 1 part white vinegar and 1 part water. Let this sit for about 15 minutes, then wipe dry. The baking soda and the vinegar will deodorize and clean your cooler.