Here is a great lesson idea on how to pay your bills in Korea. For example, paying your cell phone , gas, and power bills in person. In additon, you can even do an additional side lesson on how to pay your bills through an atm or one of those machines that scans your bill and takes the money out of your bank account.
I think it's a great idea that has not been touched upon yet.
We'll get something prepared soon. Thanks !!