Make a fall nature mobile: acorns, fall leaves...
Go indoor apple picking.
Make shaving cream painted fall leaves.
Make apple cider pancakes.
Go on nighttime walks when it starts getting dark at five pm (I love this idea for a lantern to guide our way).
Make fall-colored sugar cookies in the shape of fall leaves.
Make caramel lollipops.
Visit a corn maze.
Talk about and write down what we're thankful for (we plan on adding this book to our collection).
Paint with fizzing paint on the sidewalk.
Make apple pie.
Glow-in-the-dark painting with Wugs.
Make apple playdough.
Make leaf animals (via ParentMap).
Apple roll painting.
Side by side apple taste testing.
To be added and updated. Welcome fall (but indian summer, you're welcome to stay a little longer too!)
Aaaaaaand some other things we did that weren't on the original list: Make a Wugs-sized scarecrow. Climb a pumpkin 'mountain' at a local grocery store one evening. Make apple cake after reading this lovely book. Decorated gourds with feathers and googly eyes. Did crayon drip art on a pumpkin. Make shrunken apple heads (these grew mold and I had to throw them away before being able to decorate with 'em.). Had 'dinner in a pumpkin' one night.