At Oxide, it’s no secret we love package design. So when Dr. Sarah Gupta showed up at our door looking for retail packaging for her new invention – the Buff Cuff – we jumped at the opportunity. The patent-pending Buff Cuff is “an all-inclusive workout system designed especially for busy people.” It’s a silicon bracelet you wear on your wrist which helps lead you through a series of twenty daily exercises you can do anytime, anywhere. Sliders on the cuff…