My husband, kids, a niece and I had a memorable feast on wild blackberries we came across on a bike ride two summers ago. The fruit was so wonderful that I went out and bought two blackberry bushes the next spring. One of them hasn't done much, but the other has grown like crazy. I picked a good-sized bowlful of berries the other day and they're still coming. I know those blackberries aren't exactly free, since I paid for the bushes, but considering what the fruit cost in the market, they're a deal.