Airport
We drank an entire bottle of sake on our flight from thailand to seoul. This sake was from the duty free store and was also filled with gold leaf. We managed to cab it to our guest house but finding the place was really tough and required stopping a couple people on the street and asking for help.
Garosu-Gil
We stayed in the neighborhood of garosu-gil for a majority of our stay in south korea. It was a really cool upscale neighborhood just packed full of interesting coffee shops. We were repeatedly impressed and amazed with our morning cup of joe and the accompanying sweets. The shopping and food in this area was also very good and it was a very enjoyable walkable neighborhood in general.