Amazon is planning a new and larger suburban format for its cashierless Amazon Go convenience stores. Plans call for a 6,150-square-foot Amazon Go to open in Mill Creek, Washington, followed by another new-concept Go store in metropolitan Los Angeles. These are much bigger than current 24 Amazon Go stores, which range from 450 to 2,700 square feet and are in high-traffic urban locations in Chicago, New York, San Francisco and Seattle.