Chasing Amazon: The store of the future is already here as retailers up their tech game

Tally roams the aisles of several Schnuck Markets making sure that inventory stays stocked so customers can find what they need. Windows that allow you to tap and shop while the store is closed. You don't have to wait on the store of the future. Retailers ramped up the tech this holiday season, offering mobile checkout and apps that pinpoint the exact spot to find the toy you were looking for. But the bells and whistles are more than a seasonal perk.