This challenge is not for me right now, considering we'll be moving into our first home this summer and all that, but amazingly inspirational! This group has committed to buy nothing new for the entire year. They have a yahoo group to keep accountable. It really is true that the consumerist culture we live in is terribly detrimental to the environment and damaging to our finances. They allow themselves to buy used, but nothing new (other than personal necessities). Wow!
This got me thinking about more easily attainable simplifying, so here are some links I found on the subject: