What's the best piece of advice you ever got from a customer, not a mentor?
The best business advice I've been given came from a customer who wasn't trying to give advice. They were just frustrated about something and said one sentence that completely reframed how we built the product after that call. Mentors and coaches have been useful over the years but nothing's hit like that one offhand comment from someone who was actually paying us.
What's a line from a customer that changed how you think about the work? Doesn't have to be profound, often it isn't, sometimes it's just accurate in a way you didn't want to hear.