My most impressive (and told) customer service story was from an unlikely source, a steak restaurant (Browns, Rivonia, South Africa). 

After a great steak (with an impressive Creme Brûlée), I enjoyed Red wine and a conversation with a great friend. It was only the next day that I was impressed. 

The manager called me. He thought one of us had left a jacket. He just wanted to thank me for visiting them last night. He also wanted to check if everything was to my liking.

Every morning there was a process of calling every booking from the previous evening’s reservations. Not only for quality control but because he (they) really cared about their customers. 

How many business owners take the time to call every customer? How many check in to see how everything is at the end of the month or project?

In that 1 act, there are so many opportunities to improve your business. 

As it costs 6x more to acquire a new customer than retain an existing one.