Urban Farming is on the rise in many places where we lost farming a long time ago... Reminds me also of what I learned here in Lyon (!) that 80% of the people in Estonia either grows their own potatoes or gets them through a personal home-grower.
I just heard about a largescale hitchhiking-ish movement in the Bay area, called "Casual Carpool." Named something of which Americans won't be terrified (because hitchhiking is scary), Casual Carpool is a great way to miss the $7.50 (minimum) round-trip charge to get across the bay into San Francisco.