South Florida Sun-Sentinel: With summer heat around the corner, some consumers came to the South Florida Ideas Exchange on Saturday looking for simple ways to save energy and save money on their home electric bills. It’s easier than you think, some expert panelists said. Some simple suggestions: Replace incandescent light bulbs with energy-saving compact fluorescent bulbs. Set the air-conditioner thermostat at 78 degrees or higher. Use ceiling fans. Limit opening the refrigerator. Clean or regularly …