 That is where you put your leaves. We're going to reduce the area of lawn. All these things work together. You're going to put big beds under your trees. That's where the leaves go. You can plant right through those leaves. You're fertilizing your trees. You're creating very viable habitat for all those caterpillars that fall out of your tree and pupate underground. And you're reducing the area that's in the lawn at the same time. Trees don't want grass right up to them. They hate that.