First off, there were plenty of street vendors near by, where you could get snacks and little fashion accessories and such, and there were also restaurants in small streets everywhere.
Oh, and there were many, and I mean many, different convenience stores within a few blocks of the hotel. Most of them were GS25 stores. You could find simple household necessities, snacks, and all sorts of beverages at these stores, and you could also buy tickets to events and trains. Convenience indeed!
Browsing at convenience stores was fun!