This document outlines the key lessons learned from the speaker's service design journey over many years. The five main points are:
1) Service design requires balancing the experiences of customers, staff, and the business.
2) Service design problems often have no single right solution, so ambiguity is normal.
3) Storytelling is a key tool in service design to illustrate experiences.
4) Great ideas are not enough - successful service design requires executing and sustaining ideas over time.
5) Service design requires bringing together diverse stakeholders like customers, designers, and the business to work as a team.