Before any high-fidelity mockup leaves my desk, I run a mental checklist against a core set of established principles. I’m not just checking pixels; I’m checking perception. I use a fantastic reference that groups the most critical UX design laws in one place. It helps me ask: Does this layout obey the Law of Common Region? Does this flow account for Hick’s Law? Having this framework prevents fundamental usability errors before they happen. You can find my essential checklist here: UX design laws https://clay.global/blog/laws-of-ux . It’s the backbone of my review process.