As you travel your neighborhood on walks or the daily commute, try to take notice of your environment and take stock of the various edible and medicinal plants growing in your area. You will be amazed at what is available and growing. Many can be harvested for free or shared with the neighbor who is growing them. It is a great way to meet new people who are building resiliency.
Learn about some of the rules of the road and find some other resources here: http://www.urbansustainableliving.com/foraging-for-food-in-your-neighborhood.html