It's no secret that the goat's-milk soap made in a certain Kansas City warehouse makes human skin look, feel and smell good. Heck, even Courteney Cox uses Indigo Wild's lavender-mint Zum Bar. c(Customer photos and letters displayed inside the company's factory and retail space rave about dog zumming, too — dogs being arguably harder to keep smelling good than Courteney Cox.) When we accidentally left a bar of this soap in our car overnight, we stumbled upon yet another use: air freshener. A strong but welcome rosemary scent filled the car for a good five months, allowing us to say a final farewell to that little green tree dangling from the rearview mirror. Zoom Zum.