During a 2024 energy inspection for an ICS Legal client's office, I discovered uninsulated HVAC ducts in the ceiling, not flagged in prior audits. Using a thermal camera, I found 30% heat loss, costing $2,000 annually, per DOE 2023 benchmarks. Insulating the ducts saved 25% on energy bills. Impact on Approach: I now prioritize thermal imaging in all inspections, catching hidden inefficiencies like duct leaks, which 40% of buildings have (EPA). This boosted client savings by 15% on average. Advice: Invest in thermal cameras and cross-check HVAC systems, even if not in scope, to uncover high-impact issues. Document findings with images for credibility, aligning with ASHRAE standards.