To reduce your electricty bill some more I suggest you don't run any air conditioning. You can run fans instead but to secure your house when you are not home bolt on expanded metal coverings over several windows you want to leave open and have a large fan blowing outward (or better yet get an attic fan). That way your house can be cooled by ventilation instead.

Also I would put up a clothes line for drying clothes instead of running the clothes dryer.

You could also turn off electricity to the water heater every time you leave the house or go to bed.