You are certainly trying to conserve money, but you can conserve more in the end if you substitute them. You may expect that your bills will go down as the new designs do not up a lot of energy.
You should look at alternative energy sources along with your existing energy supply. Essentially, you can't depend solely on renewable power sources today to give the energy needs of your family.

It is best to always unplug your home appliances if you are not using them as they still consume energy when they're switched off. It is one of the blunders made by homeowners so you must not do the same and unplug your appliances if you are not utilizing them.

Lighting has been ignored for a long time as most people feel that they might open their lights for 24 hours and their expenses won't be afflicted. Bulbs are actually small, but they consume plenty of energy.