Communication - Do you send "Done Videos"?
A picture is worth a thousand words; and a video is worth a thousand pictures.
Clients love Done Videos. Done Videos offer transparency, visibility, testing, and early releasing of a feature they might otherwise have to wait weeks or months to see released. The video lets them see the new feature and enables early feedback, which is beneficial to both the developer and the client.
The best way to demonstrate that a new piece of functionality is working is to record yourself using it successfully. this works as both a demo, as well as a training aid if they need to reference it again later.
Figure: Good example - Record yourself and your screen