Listed below are three ways for the efficient use of energy:
$$\cdot$$ Use of LED lights or fluorescent lights or natural skylight instead of traditional incandescent light bulbs will reduce the amount of energy required to attain the same level of illumination
$$\cdot$$ Usage of compact fluorescent lights (CFL) saves $$67\%$$ energy which may last 6 - 10 times longer than the incandescent lights
$$\cdot$$ By reducing the weight of vehicles, fuel efficiency in vehicles can be increased with the use of advanced tyres and computer controlled engines.