This year, the garden went wild. It convinced some members that maybe this no-till approach was worth trying. And it did a better job convincing people than any a mount of lecturing could. My local club organizes outings to public and private gardens for the members. We've gone several places that the general public can't get into.
Some garden clubs arrange bulk buys of garden supplies or plants.
Our club has a yearly outing to buy annuals and Christmas Poinsettias. These save the members money while rasing funds for the club. You could save more than the money you spent on your yearly dues. If you're interested in a specific plant like roses, a garden club specifically designed for roses can really help you. You'll learn about new cultivars, the latest growing techniques and the tried and true methods.