On my dashboard I do have a couple of entities that could use some extra information (specially for the wife, cause some things she barely use and she does forget the use of it…).
As an example: If you long press on entity “Injection/extrusion” it would be nice to get a possibility to get a pop-up with extra information you can adjust to your needs and some explanation of the possibilties.
Even simple things: long press ‘sensor.hallway’ would open up: “This device is located next to the window at the left side of the hallway. The battery used is type CR2032. Batteries stored in red box.” This would make it more easy for her if I’m not at home for a longer amount of time in some cases. And it would be a huge WAF.