This means, of course, football. But it also means that squirrels will be active chewing for the winter. It also means many trees will be starting to shed leaves or drop acorns. So make sure your gutters are in good shape and are clean, because they will plug up quickly. If rain comes and gutters are plugged, the rain can back up and get under the shingles at the eve of the house, causing significant wood rot over time.