Warm Season Vegetables
Pick the largest, almost ripe green tomatoes, just before the frost. Put them in a brown paper bag with some apples and they will ripen as sweet as if on the vine.
Remove all old vines of beans, squash, etc. to the compost pile and then spade or till the garden.
Cool Season Vegetables
You can still plant garlic and onions for harvest next year.
Garden Bed Care
Plant winter rye or red clover in any bare, exposed ground spots. This will assist in erosion prevention, the conservation of nutrients, and add organic matter back into the soil.