Amazon.com (NASDAQ: AMZN) made waves through the business world once again last week when it unveiled its new Amazon Go convenience store, which has no checkout counters or lines. Using technology similar to what you’d find in a self-driving car, cameras and microphones detect what items customers pull off the shelves and then charge them after they walk out of the 1,800 square-foot store. Customers only have to scan the Amazon Go app upon entering.