What are the best ways to make your home energy efficient?

Other than light bulb replacements with flurorescent Would like to hear ideas on water heater timers and insulation blankets and what you think. My AC is 10 years old and the water heater is 7. Water heater is electric - AC is central air - heat is natural gas. All appliances are electric. This is a 2BD 868 ft2... show more Other than light bulb replacements with flurorescent
Would like to hear ideas on water heater timers and insulation blankets and what you think. My AC is 10 years old and the water heater is 7. Water heater is electric - AC is central air - heat is natural gas. All appliances are electric. This is a 2BD 868 ft2 condo - bottom floor - 20 years old.
Update: Keep in mind there is no attic because this is a condo on ground floor.
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