Three days, three updates, one easy delivery
On each of my three trial days, I sent a short update. One example: I told the client I was actively working on the newsletter, that I had finished the initial draft, and I attached the result of my brand research. The client could see momentum, every day. And when I delivered, I made it easy: I did not just attach files and hope. I set it up so the client could click and it would open right away. No friction, no hunting, just open and be impressed.
That combination, steady updates plus an easy-to-open delivery, told the client the whole story before they even read the work: this person is reliable, organized, and considerate. Those are the things a client is really buying.
Keep them informed, and make the final easy. Updates during the work and a frictionless delivery at the end do as much to win the client as the work itself. Reliability is felt, not just claimed.