I recently found this interesting blog post called 100 Thing Challenge. This is a personalized effort by David Bruno to fight consumerism. Basically he will live with only 100 personal things from November 12, 2008 to November 12, 2009.
He defines personal things as things that are his and not used by others in the household. Items like dining table, bed, and piano are not considered as personal things. He also considers some items as one group, such as working tools, underwear, socks, and books (the last one seems a bit cheating, but anyway).
I recommend you to visit his blog at 100 Thing Challenge to see his current list of things that he has right now. He is updating the list periodically.
For me personally, I congratulate him for his effort. This is indeed something new and creative. The effort is also good for our environment as less personal things mean less waste and less production that contributes to global warming.
It may also become a dilemma because if everyone does the same, the economic will be affected as no one is shopping. However, I feel that everything will balance itself. There will be a point where our economy, our needs, and our environment is at balance and thus every aspect will get benefits. It is interesting to follow this effort further.