There are several hidden gems of model-driven Power Apps that you might not have used or even heard about.
As a functional consultant, there are a lot of things you can configure (not code!) to make the system smarter and better for your customers, and we'll go through several of them.

Did you know you don't have to have your subgrids all shown? There's a better way of doing it.
Have you tested everything that a business rule can help you with?
Did you know you can show stars instead of your regular column?
There's a calendar view out of the box, so you can see your activities in a calendar.
Are you having trouble creating proper Power BI reports? Well, let the system do it for you!