One of the simplest yet most efficient thing is:
Readability and clean structure
It is a crucial step for onboarding, collaboration structure and communication. Consider your clients does not have enough time, expertise or focus (you will identify the stage when you meet them). And help them to navigate by using hierarchy, clear and effective notes for guidance and articulation.
This will showcase your proficiency, will showcase how you handle your work and how you put attention to the work.
Some tips:
Use clear hierarchy and paragraph structure
Always send a short recap or review summary
Take notes for important points and highlights to underline them later
Articulate the decisions efficiently
Best ✨