Other things you might want to be thinking about is mulching your trees, especially newer ones to stabilize soil temperatures and retain moisture. Your garlic and other bulbs will appreciate a good layer of mulch too. I just put 3-4" of old straw over our garlic. You can probably prune most trees that need it, as well, but there is no rush as they will be dormant for a few months now.
If you are planning to change over any part of your lawn to garden beds; or the installation of compost bins or other things with posts in the ground you better get on it! The soil probably won't be workable for much longer.
Have a great week! Stay warm!