What are your preferred ways for making a lot of details available to your users?

have you thought about explicitly noting the ability to filter using the 'affects dashboard filters'. One thing I'm doing more of these days is providing text boxes with guidance on how to use the dashboard, key things they should know. Recording a quick video could help too. I know that's not really about the widgets or visualizations themselves, but I'm increasingly focused on the guidance/training in the vehicle if I can.