Every year, I'm awed by the beauty of God's creation!
When you stop for photo opps, collect some of the leaves to use in frugal decorating. You could do something simple, like this (from last year's Thanksgiving table):
Or, arrange leaves on a sheet of wax paper and cover with another sheet of wax paper, like this:
We'll probably tape some leaves to a window or indoor mirror and use others to decorate the table. Use your imagination! And check out a post by MoneySavingMom to read about using leaves in homeschool lessons, too.