Energy Efficient Cooking
One great way to introduce savings is using your microwave more often instead of the stovetop; using a microwave is the most energy efficient method, using 2/3 less energy than the stovetop.
Tinker with the Thermostat
Set your themostat somewhere around 78 degrees when you're home and bump it up to 85 when you're away. The idea behind this being you save 1-3% per degree above 72 degrees.
Wash on Full
When doing laundry, If you care about the state of power consumption, meet you neighborly duties by not running any power-consuming appliances during peak hours (4-6 p.m).
Pack the Fridge Full
This is a bit of practical common sense. The more cold stuff you have inside your refrigerator, the longer you can leave the door open, and the longer it will take to heat up inside when power is lost.
Check Attic Insulation
If your current insulation rating in the attic is R-19 or less, you should really consider swapping out for at least R-30, or have a professional install closed cell foam.
Hang when possible
If pollen isn't a huge issue where you live, try and hang dry clothes whenever possible; enjoy no energy use with a fresh nature smell.
Have Ductwork Inspected
Faulting Ductwork can account for a quarter of cooling costs in your average household, so these should be checked periodically and cleaned every 3-5 years.
Get Some Film!
If your home has a lot of natural light and you've heard of window film, you should get acquainted as soon as possible. These films are almost magical: they let light in, block most heat / UV rays, and reduce most glare.