Patrick Sisson and Alissa Walker with a great list for Curbed. A few I think are particularly interesting (and/or I might do):
13. Begin a guerrilla garden uprising. Green thumbs often have private plots and backyards to grow, but they can also get on the front lines. Surreptitiously filling in unkempt lots or small patches of untendered land with plants and flowers, or tossing a “seedbomb” at a hard to reach patch of land, turns lost space into lush greenery. Richard Reynolds, one of the leaders of the movement, maintains a blog with invaluable tips on how to reclaim “unloved public spaces.”
30. Open a gallery in your living room. If you think your apartment is cramped, maybe all it needs is a few paintings on the wall: Paul Soto turned his 300 square-foot apartment in Los Angeles into a functioning gallery.
90. Start a mobile produce market. Running a new route through the city’s food deserts, a decommissioned Chicago Transit Authority bus now moves market-fresh produce, not riders. The Fresh Moves project helps underserved neighborhoods get access to the same farmer’s market finds sold in other parts of the city.
98. Map your public produce. After noticing how many figs hanging over property lines remained unplucked, Fallen Fruit started making maps to help neighbors discover unharvested edibles growing on sidewalks and alleys. For bumper crops, Food Forward will show up and pick unwanted fruit, distributing it to those in need.