I read online. Yep, that also helps. No paper – no deforesting. All your favorite newspapers, magazines, and books are all available online or on your tablet, people. And it's cheaper that way, too.
I also treat myself. I'm a coat and jeans person, why not invest on really good piece of those? Good expensive clothes will last for years instead of a bunch of cheap ones I'll only wear a few times and toss.
Oh, and one more thing I do online. Buy digital tickets. To anything from movies and shows to airline tickets. Easy? Yes, it is. Eco-friendly? Yep.