A network of conveyer tracks and army of workers keep orders moving throughout the Amazon warehouse in Kenosha, Wis., on March 20, 2016. Amazon, in an attempt to fill its warehouses with toilet paper, hand sanitizer and other items in high demand, said March 17, 2020, that it will limit what suppliers can send to its warehouses for the next three weeks to items that are in high demand. (Phil Velasquez / Chicago Tribune)