You're busy. You have work. A family. Responsibilities. A tight schedule.
The good people at Home Plus make it easy to do your grocery shopping on the glass panels separating the subway tracks from the platform. This 2D store is at the Seomyeon transfer station in Busan.
They've had these up on Seoul for awhile, but it's cool to see one here (side note: we once met a guy from Seoul who called Busan "provincial" in a derogatory tone. Busan is a city of 3.6 million people. What a twat.).
Using your smartphone, just scan the UPC's of the items you want. They'll be delivered to your home by the end of the day, the charges automatically deducted from your account. Too cool right? You may never have to interact with a fellow human being again!