Just a quick FYI a new law has come into effect banning customers from being served plastic take out cups if your are planning to stay inside coffee shops etc.
Cashiers will ask you if you will be sitting in or taking out and serve your accordingly.
If the coffee shop is caught with customers with plastic take out cups sitting in they will be fined up to 2 million won.
So be sure to know if you are staying or leaving. Or pack your own tumbler and have freedom to leave and take out your drink when you choose.
Reuse, reduce and recycle,