Photo: Courtesy of Le Creuset
3 of 5
Best Habit: Make home design and fashion choices based on classic, timeless styles. Environmentalists often want to talk about the greenest materials or recycled content, but sometimes the best move for you and the planet is to buy something you really love that will last a long time.
Favorite Product: A multifunction cast-iron pan from Le Creuset. I use it all the time, and I'll be able to pass it on to my grandchildren. Plus, it's healthier than nonstick pans that can emit potentially sickening fumes when overheated.