In these tough economic times we can find comfort in recalling the hardships of previous generations. During the First and Second World Wars, everything was rationed and all food mattered. I found a collection of propaganda posters, from firstworldwar.com and at the Northwestern University Library detailing what normal citizens could do to help the war effort. It seems that the messages found in these posters are still relevant today.
Retrospectively Silly Propaganda
Still Relevant Propaganda