<p>To improve usability, maintain a clean, consistent layout with simple navigation. Power BI developers use intuitive color schemes and visual hierarchy to highlight critical data points. Prioritize the most important KPIs and data, avoiding overwhelming users with too many visuals or interactivity options. Include tooltips, filters, and slicers that enhance user experience without complicating the report. Create templates and guidelines for report design to ensure consistency across reports. Gather feedback from end-users regularly and iterate on design elements to improve overall usability and insights.</p>