This is no time to give in and call it quits in the garden until next spring.
If you call it quits in the garden now, you won't have a spring with all kinds of pretty spring flowers. Your flower borders will be a mess of weeds and plant debris and faded floral flotsam. You will miss out on a great season to plant trees and shrub.
You are a real gardener. You just march yourself right back out to your garden this fall and start planting. Shrubs, trees, bulbs. Now is the time to plant them. Now.
And while you are out there, you need to weed, edge those borders one last time and apply a new layer of mulch to the garden. Now.
And if it doesn't rain enough, you need to water those newly planted shrubs so they aren't thirsty all winter. Now.
Henry Mitchell said it best in The Essential Earthman. “… but fall--not spring—is the great planting season for woody things. If, in other words, you had thought of lolling in the warm weekends admiring the chrysanthemums and the dogwoods turning red, congratulating yourself perhaps that the weeds are losing heart, let me cheerfully remind you that you should be exhausted (not lolling) since this is the busiest of all the garden seasons."
It's almost fall. Everyone out to the garden, now. Times a-wastin'! Now. Don't come in until winter!