no, i live in an environment with barley any trees, i have 5-7 trees in my 5 acre yard, and a few don't lose their leaves. i have 1 pine tree, and that's all of the pine needles. Aka, not much at all. yeah. i guess i could go to each tree and pile all of the leaves together and throw that in the pen. maybe
I pay nothing for run litter by using what's available around me. You have neighbors who have trees or dried leaves or other yard waste? Around here people are dying to get rid of bags upon bags of dead leaves, plus other organic debris. Tree trimming companies in my area will drop wood chips for free/for gas cost too.