Okay, let’s calculate this. Shirley has a broad range of skills, including retail, inventory management, customer service, and leadership. However, these skills are quite common in the retail industry. According to the Bureau of Labor Statistics, the median hourly wage for retail salespersons in the Chicago-Naperville-Elgin, IL-IN-WI Metropolitan Division is around $15-$20 per hour. Considering Shirley's skills and experience, I would estimate her hourly rate to be on the lower end of this range, likely around $35 per hour, given her leadership and training experience.