Clear the property without stripping it bare
Remove heavy leaf mats from turf and hard surfaces, clear debris from drains and window wells, and clean obvious problem material from beds. At the same time, leave healthy structure where it adds winter value or benefits the garden.
Keep watering in mind
Evergreens and recently planted material benefit from entering winter without being drought-stressed. If autumn is unusually dry and the ground is still workable, sensible watering before freeze-up can help newly established plants.
Check mulch depth
Mulch should protect the soil surface, not bury trunks or stems. Pull heavy piles away from the base of trees and shrubs and keep crowns from sitting under dense, wet material.
Be conservative with late pruning
Fall is not a universal pruning season. Avoid stimulating tender new growth late in the year and avoid removing flower buds from shrubs that bloom on old wood. Structural or safety issues can be addressed, but decorative pruning should follow the plant.
Prepare hard surfaces for snow
Clear loose debris from walks and driveways, identify trip hazards and make sure snow contractors know where delicate edges, lighting, gardens and narrow walkways are located.
Document anything you want to remember
A few quick fall photos can be surprisingly useful next spring. They help you remember where bulbs, perennials and edge lines are before everything disappears under snow.