Okay, let’s calculate this. Larry has 39 years of experience in interior design, which is impressive. His skills include space planning, interior architecture, and residential design, which are in demand. However, his experience is mostly in the private sector, and his location is Lafayette, California, which might not be as competitive as major cities like New York or Los Angeles. Considering these factors, I estimate his hourly rate to be around $125, which is slightly lower than the national average for interior designers in the United States. According to the Bureau of Labor Statistics, the median annual salary for interior designers in the US is around $55,000, which translates to approximately $26.50 per hour. However, experienced designers like Larry can command higher rates. Let’s assume a 20% premium for his expertise and location, which brings the rate to $125 per hour.