Great Magazine for gardening tips-
http://www.gardengatemagazine.com/
Just a few tips
In the fall write the name of your plant on a plastic knife or popcycle stick and put it next to your plant so you remember what you planted where.
Keep tags of all of the plants you buy and then write note on post-it notes so that you know what worked and what didn't and what to try next year.
Keep watering everything until there is a layer of snow.
When growing plants in containers
-Dump your soil out in the fall. Don't reuse the soil.
-Use bleach and scrub out the containers. Then allow them to air dry in the sun.
Now is a good time to plant bulbs. Plant them 3 times deeper than the size of the bulb. If you plant a tulip 10" deep it can become a perennial.
For Fall after it freezes then it is time to cut down your perennials and cover. Don't cut woody plants such as butterfly bushes till spring as well as hosta. You can cover up your plants with mulch, 1/2 inch of manure, or "Soil Pep."
Happy Fall Gardening!