Shelf presence. Remember when your lipstick, detergent and shampoo had to have in order stand out from the competition in food stores, drug stores and mass merchandisers? Not anymore, according to Brent Nelson, senior manager, worldwide packaging, sustainability, Amazon.   “I always thought the moment of truth was in the store aisle,” admitted Nelson. “E-commerce is changing that. It is about delighting the consumer and reducing packaging.”   Nelson was the keynote speaker at New Horizon...