Robots are going to do many things for us in the future. That applies to carry thing we buy in stores. Take Dash from Five Elements Robotics: it is an autonomous robotic shopping cart that helps you get and carry the things you need more conveniently.
The robot leads customers through the store. It has checkout functionality on-board, so users can pay for things in their cart using their credit card, Apple Pay, or Google Wallet. Pretty convenient, don’t you think?