Activity involving mental or physical effort done in order to achieve a purpose or result.
A customer walked into the post office wanting to mail a package. “Two-day shipping will cost $12.95 to get it there by Friday,” my coworker Billy told her. The customer, clearly looking to save a few bucks, said, “The package doesn’t have to get there till Saturday. Is there any way to make that happen?” Billy nodded. “Sure. You can bring it back tomorrow.” —David Cutcher