The answer is: Yes! We took on The Compact Fluorescent Lightbulb Challenge and changed all 17 bulbs in a home—and saved some real money. Host: Roisin Timoney. —Shot and edited by Emily Calderone

Figure out how much you'll save if you make the switch: CFL Calculator | Also find out your carbon-emissions savings: Environmental Defense CFL Calculator | Where to buy CFLs: Home Depot | Music by: Russel Fong