Write an informative article detailing the optimal thermostat settings for summer in Washington, emphasizing both comfort and energy savings. Incorporate guidelines from the U.S. Department of Energy regarding temperature adjustments and explore recommended settings from local energy companies. Provide practical tips for further reducing energy bills through everyday actions. Additionally, discuss the science of thermoregulation to explain how temperature comfort varies for individuals and how this impacts energy consumption. Conclude with the importance of adopting energy-efficient practices for personal savings and environmental benefits.