The first puddles of falling leaves are on the sidewalk...
When the weather starts to change, every year I enjoy getting out table decorations to match the season and it puts the house in the mood. When the kids were little, they really noticed and commented.
The pumpkins go from Fall with leaves , to Halloween adding goblins, to Thanksgiving adding Pilgrims!
In the den, I get out blankets to cozy up with while reading or watching TV. Even the dogs like to curl up!