My hubby and I are in the midst of what we call "a major simplification". We're greening our home, starting with cellulose insulation and switching to compact flourescents, followed by converting to more efficient appliances and possibly solar panels.
I recently traded my beloved Audi TT for a Toyota Yaris. I've gotten a lot of negative comments about this change, but the Yaris is more gas efficient and produces less emissions, so it's worth it. Hubby is researching an electric car conversion and would like to go electric ASAP.
We've reduced our purchasing volume of just about everything and live in a smaller home than we'd like because we don't NEED more space. We carry canvas shopping bags in our cars, recycle everything we can, give plants as gifts, walk where we can, use rain barrels, electric lawnmower instead of gas. We're of course vegetarians and eat organic when we can.
I'm sure there's more, but we're constantly looking for ways to minimize our impact. The more aware I become, the more angry I am with people who just don't care. I like steaks and fancy cars as much as the next person, but my choices impact the planet and the rest of it's population, so a little sacrifice and personal responsibility is most definitely in order.