Here's a few I regularly do or have started since the D with my four children (S6, D8, D11, D13)...
Go to an Orchard (I'm in MI, so plenty of apple orchards...) Fresh donuts, cider, apples, honey...
Visit the pumpkin patch. For me, I visit a local one where i have to drive back to the patch. Allows for a fun bumpy ride through the rows of apple trees
We started a "Scare Board" (similar to Monsters Inc.). We started Mid Oct through Halloween. We get "scare points" for startling one of the other family members when they least expect it. Winner gets a special prize on Halloween. To keep from freaky everyone out, can only be done when all are home and ends at bedtime. I encourage teamwork by allowing people to get assist points (little ones need help with the setup sometimes...). Lot's of fun and keeps you one your toes!
Halloween Spooky Meal - On a night just before Halloween (too busy on Halloween night) have a special Halloween Spooky meal. Lots of candles, gruesomely good foods, deserts, etc all with a Halloween theme. There are great ideas online but one year I did the hotdog/crescent roll wrapped "mummy dogs", mashed potato snakes, evil cheese fingers, a huge cat made of vegetable cutouts. Be creative. The kids love it!
Have a fall campfire - weather permitting, on a cool sunny fall evening have a campfire and roast marshmallows. Note: may have to rotate like a rotisserie chicken to avoid your backside getting too cold....
Monkey Bread: on the first snow flakes of the season (whether it sticks or not) make a huge pan of monkey bread (find the recipe online, but its pop and fresh bisquits cut into quarters, put into a pan and drizzled with a brown sugar/cinnamon syrup and baked. Can sit around the table and pull it apart to eat.
Thanksgiving Blessing Cup - this one is from my mom. Pass a blessing cup around the table on Thanksgiving and say something you are thankful for in life.
And it the words of Clark W. Grizwold whenever the kids complain about doing anything around the holidays tradition or not...."Well it's all part of the experience..."