Keeping cool during the summer requires strategic AC usage to maximize comfort while reducing energy costs. Setting the thermostat to an optimal temperature, typically between 24-26°C (75-78°F), ensures cooling efficiency without excessive energy consumption. Using blackout curtains or reflective window films blocks heat from entering, reducing the strain on the AC system. Running ceiling fans alongside the air conditioner helps distribute cool air more evenly, allowing the system to operate more effectively. Regularly checking refrigerant levels, cleaning condenser coils, and ensuring vents are unblocked keeps the unit functioning at its best during peak heat periods.