I am one of the vendors for Oak Park's most popular produce stand: Sandhill Organics. We are the only vendor that is 100% local and organic, growing everything with hard work and love in Grey's Lake, Illinois. I love the farmer's market for 2 main reasons: one, when you go to the farmers market, everyone is so happy to be eating local and organic food: it just tastes better, and there's something about getting up early and joining everyone in the healthy act!
2, the farmer's markets are so healthy because they drastically cut down in carbon resources needed to ship food from tropical areas of the world all the way to the midwest, some of us (like Sandhill) use no pesticides! And last, and my favorite, lots of Farmer's Market shoppers bring their own bags, cutting down on evil plastic!
But really, come join us. Great produce at Sandhill Organics, delicious homemade doughnuts from the Pilgrim Church staff that houses us, and a really fun bluegrass band, every saturday til the end of October.