Three cool tips for air conditioning on a budget

Summer is in full swing, and that means millions of people are cranking up the air conditioning.Air conditioning can get expensive. DealNews and CBS News have tips on how to stay cool and keep your wallet from overheating.Here are four of them:- Don't overwork your air conditioning - use a ceiling fan, too.- Get a programmable thermostat - save money by regulating the temperature when you're not home.- Block sunlight with drapes - it'll cool down the room.- Clean your air filters regularly - dir