Where I live, they have (or had) several energy information things available:
The electricity companies replace incandescent light bulbs with CFLs and halogens with LEDs for free. I replaced all 31 halogens with LEDs back when LEDs were very expensive, and there was still (even then) a saving after a few years because of the lower electricity cost. They also replace shower heads with lower volume ones to save water, also for free. Both reduce your impact on the planet as well as reducing your electricity and water bills (note that hot water is both an electricity and a water consumer).
Libraries just about everywhere (at least in Australia and the US, probably elsewhere as well) have kill-a-watt meters or similar available for loan. You can use these to work out how much electricity your appliances use. Obviously, turning off appliances, so that they don't have even the pilot light (which uses quite a lot of electricity), when they are not being used, saves a lot of electricity.
My library system goes one step further than just having the kill-a-watt available. It has a kit, which includes a booklet that you keep, an instruction book, a compass, kill-a-watt, infrared detector, thermometer and I've forgotten what else. Use the thermometer, for example, to check your fridge and freezer temperature, and adjust them to appropriate boundaries (this saves electricity and keeps your food fresh for longer). The infrared detector is good at looking at where the gaps are. For instance, waving it across the ceiling (on a very hot or cold day) shows you where your insulation isn't as good as it could be. Waving it along the edges of windows, doors and where floors and walls meet, shows you where there are gaps that can be filled.
My local government (at two separate places I have lived) has a free (or nearly free) house inspection, with suggestions on what would give you the best bang for your buck. One suggestion was to put bubblewrap in the bottom of the skylight (it acts as a clear insulation).
Whenever you are about to purchase any appliance, look at the government appliance site to find out the energy efficiency of your new appliance. My new fridge (well, it's a few years old now) uses much less electricity than the old one.
When I replaced the globes, fixed some gaps in insulation, and put awnings on the windows (stops windows getting heated by the summer sun - I found we didn't need AC in summer apart from a couple of days) my electricity bill halved.