Examples
- Our hotel receptionist went the extra mile and booked us a table at a local restaurant.
- Customers remember companies that go the extra mile for them.
- If you want that promotion, you'll need to go the extra mile this year.
How to use it
Neutral and very common in work contexts. Often "go the extra mile for someone".
Where it comes from
Usually traced to the Sermon on the Mount in the Bible: "whosoever shall compel thee to go a mile, go with him twain".