Take advantage of autumn cooler temperatures and cut back some of the perennials and the summer and fall blooming shrubs that you have not gotten too. Cut out the dead branches while there is still leaves on the plants that help identify what is still alive.
Plant some bulbs that will flower in the spring. I have planted bulbs the weekend of Thanksgiving in the past and the plants came up just fine and flowered beautifully. While I love tulips if you have chipmunks and squirrels they love them also… to eat. They will leave daffodils, narcissus, crocus and hyacinth alone, so plant and enjoy them. Months from now you will be so glad that you did.