Self check out in the shops is something really awesone. It never occured to me how conveniet it could be. Instead of waiting in the queue you simply go to check out machines, and scan things you picked by yourself agains barcode scanner. Peep...peep...peep...peep..., insert notes to pay or use your bank card. Inserted note, got the rest, put everything to bags and all done! Shopping never been easier!

And this guy also loves to shop. There is a good place for Mark to stand right in front of the carriage, so he is first to see everything which seems really important for him.