Maple seeds in gutters.
The people across the street have small forests of maples growing in their gutters. I will say that its much easier to pull out an intact maple forest mat than having to hand scoop out a gutter full of composted oak leaf muck!
Same problem with Beech trees here, tree litter everywhere. I’ve found out I’m a master poison ivy grower too, lol. Arboreal Appalachia, sigh.