You'll never guess just how eco-friendly the couple's big day was...
"Our wedding was very green," Oosterhouse recently told us. "We had 220 people there and only one bag of trash, not even a full bag. We recycled everything, we composted everything."
Smart dished that once she and her HGTV host hubby find a new house, they plan on solar paneling the roof to make it more energy efficient.
"For my house, I had [the solar paneling company] come and...try and put them on my roof. From the mountains and the location, they said I wouldn't be able to benefit from it and it would be so expensive because I get so much shade at some points," she said. "So yeah, if we can, we will definitely try to put solar on."