Today's side deal slashes your electricity bill without dimming the lights and causing accidental romance between you and the pizza delivery boy. For $100, you get a home energy-use audit for any house or apartment up to 3,500 square feet from Greenmodeling, up to a $325 value. Greenmodeling will travel to any home within 40 miles of downtown Charlotte; beyond those limits additional travel fees apply.

Greenmodeling's jumpsuit-clad energy auditors scan homes with infrared sensors to pinpoint areas of heat loss, examine aging appliances for inefficiencies, test for carbon monoxide, assess the state of the home's insulation, stick a knife in the cake to see if it comes out clean, and more. At the end of evaluation, the company provides a comprehensive report with a breakdown of findings and pricing estimates on improvements.

While installing wind turbines in a living room and forcing dogs to run on blender-powering treadmills are great leaps toward personal energy efficiency, it will be in vain if a home leaks heat or if the air conditioner faces the wrong way. Stop sealing your windows with peanut butter and lighting the kitchen with a radiant smile, and let Greenmodeling green your home while helping you save on your energy bill.