Hi Greenphasers,
Got your email and I like the look of the new site - I had forgotten about signing up here, so this is my first (bit late) post. I like the look of the new site, but this forum seems a bit dead, particularly this bit of it. Green shopping is the biggest chance to change mass behaviour IMO, so I think you should try to get this section going again.
Here's my starter for ten: Farmers Markets. Cutting food miles and buying local has got to be the way to go. Here's all the Farmers' Markets in Oxfordshire
http://www.greenoxford.com/content/view/222/76/ and I am sure you can find a similar list for wherever you live. OK if you are a poor student like me you prob. can't afford to buy all your food there (sadly), but treat yourself at least occasionally to some real local food - you'll love it.