It's always instructive to see what's going on in other countries. We (Americans, humans?) so often think that we are the embodiment of wisdom. Anyhow, I question Bill McKibben and his dedication to local food (thought I did--it may be one of my unfinished draft posts). But here's how some Frenchmen do it (along with some nice pictures, once you get past the introductory logo).
As long as I'm on the French, my impression is that in both Britain and France people tend to go to the store very often, even daily. It's the epitome of local food--the bread is baked, the meat is butchered daily, the refrigerators are small, so you practice "just-in-time cookery". Very different from suburban and country patterns here, where you make one big shopping trip a week to stock up, have big refrigerators, etc.