Lots of people in my area sign up to have waste management ( WM ) come around and collect their yard waste when they could just have a large compost pile going in their yard and letting nature run into course.
Anyhow.. so my business would be to go around and find out who WM already has on their list for yard waste disposal and then try and convert them to someone local like me to do it for them.
I would need a chunk of land to haul the yard waste to which then I'd setup to have nature run it's course and break down the yard waste and end up with compost / top soil at the end which I could then sell back to people.