two things about the accepted wisdom that self sufficiency is a Good Thing have always troubled me. First - time and labour are themselves resources that should be used efficiently - does the wannabe green not have to ask herself honestly if her skills are best used doing other things than growing vegetables? Second - obviously closely connected I am concerned that not all economies of scale are a Bad Thing. Ultimately greeness is about efficiency is it not? ie use as little as possible. and it is not self-evident that self-sufficiency is necessarily the best way