Go go. Amazon’s tiny Amazon Go grocery stores are odd little places. They’re clean, open, well organized and devoid of checkout counters. Instead, your smartphone registers you with the system as you walk in and then charges you for everything you grabbed off the shelves as you walk out. The sophisticated customer tracking system is fairly successful in a number of small stores, but now that Amazon owns Whole Foods it would love, according to reports, to deploy the Amazon Go system is stores of that size. As a result, Amazon is doing some trial runs in larger grocery stores. The good news for checkout clerks? Amazon is still struggling to work out the kinks and most Whole Food checkout staff are probably safe…for now.