A simple/obvious/useful reminder to carry through your work day: Make agreements, don't hold expectations
Expectations vs. Agreements: What’s the Difference, and How Can it Improve Your Life?
An expectation is when you have a strong belief that something will happen. Expectation lives inside of you, and it’s based on your view of the world and your life experiences.
Agreements dissolve assumptions and expectations...But they require advance thought and consideration. What do you want? How do you want it? By when? In what form? The more details you can think about and include in the agreement, the less likely that there will be any frustration or misinterpretation.
I'm not sure what "Whole Life Challenge" is but this core idea is good.