You need to remember that your monthly expenses is related to your electrical home appliances so you should discover how to them properly. The best thing that you could attempt to do is to replace your old appliances and buy new designs. The new models actually consume less energy and they offer the same efficiency as your old ones. This type of thing should be done if you're planning for long term because you need a lot of money for this.
You can also try the natural way by making use of all-natural light in daytime instead of your artificial lighting. You can simply the artificial lighting at night and allow natural light enter your house during the day.
This will probably be a trouble to the folks who are not making use of solar and wind energy as their alternative source. Since these alternate options could be expensive, a number of people say that they do not really need this today.
You can also try the most basic method to do it. Try making use of all-natural light throughout the day and your artificial lighting at night. During daytime, let natural light enter your residence to light up it and artificial lighting at night.