Savings can be created when you use energy-efficient devices, energy-efficient modes, or sharing the energy use. For example, when you drive to work, you use gasoline. When your neighbor drives to the office which is near yours, you use twice as much energy for the same route. Why don’t you share this energy and drive once in your car and other time in the neighbour’s car? This would also reduce gasoline expense for each of you by 50%!
You can also change your light bulbs, which became almost an anecdote in the climate change topic, since so many experts were recommending it as a solution. The fact is, changing your lightbulbs indeed helps to optimize energy use without compromising the quality of light.