I really relate to the third item on Bradberry's list. Everyone says no problem any more, and I don't like it. And also--get off my lawn! From Entrepreneur.
3. 'No problem.'
When someone asks you to do something or thanks you for doing something, and you tell them no problem, you’re implying that their request should have been a problem. This makes people feel as though they’ve imposed upon you.
What you want to do instead is to show people that you’re happy to do your job. Say something like “It was my pleasure” or “I’ll be happy to take care of that.” It’s a subtle difference in language, but one that has a huge impact on people.