This may seem a little dramatic, but great customer service is doing your bit for your country.

Foreign visitors come and use any number of services and then they leave.
The impression they leave with is determined by the level of service provided. That then forms a reputation throughout their population. This reputation can be worth millions in future trade, and is often overlooked by people looking after the daily service needs, and the big picture gets lost along the way.

So, next time you are looking at serving a tourist or foreign businessman, look at how you can really excel - for the greater good of your country and reputation.