Okay, let's break it down. Charlotte has 15 years of experience in graphic design, which is a solid foundation. However, her role seems to be more focused on print materials and vinyl stickers, which might be considered entry-level or junior-level work. Location is Idaho Falls, Idaho, which is a smaller market. Considering her skills and experience, I'd estimate her hourly rate to be around $50, which is on the lower end of the scale. This is because her role doesn't seem to require high-level creative work or expertise in high-demand areas like web design or digital media. Some junior graphic designers in similar roles might charge $40-$60 per hour, so this estimate is reasonable.