Appliances – Always pay attention to the total lifetime cost, including energy—not just the price tag. Look for the ENERGY STAR label (check out energystar.gov).
Bigger isn’t always better - Just get the size you need; do you really need that extra refrigerator in the basement?
Electronics – Likewise, look for ENERGY STAR. And do like your Mom said- turn things off. If you’re going away or not using an item for awhile, unplug it to prevent “vampire” energy loss from electricity usage on standby.