A very important point from Colin Powell in It Worked for Me: In Life and Leadership:
Every person in an organization has value and wants that value to be recognized. . . . The person who came to clean my office each night was no less a person than the President, a general, or a cabinet member. They deserved and got from me a thank-you, a kind word, an inquiry that let him or her know their value. I wanted them to know they weren’t just janitors. I couldn’t do my job without them, and the department relied on them.
There are no trivial jobs in any successful organization. But there are all too many trivial leaders who don’t understand this oh so simple and easy to apply principle.