Fall gives way to winter

I was walking between classes, and I started composing this as I went.

There are just a couple leaves
On these mostly barren trees,
When the sun forgets to show
And drops of rain may feel like snow.
Floating, drifting on the breeze
Dancing circles ‘round my feet.
Swirling vortex all around
Those final leaves are now unbound,
And underfoot they crack and splinter
For ever nearer draws the winter.
So make some tea and read a book,
And do some knitting in your nook.
Wait with excitation for the snow,
And when the icy air does blow
Do not mourn the summer days,
But enjoy each season in every way.

Author's Note

I'm never sure of punctuation placement; I ususally just put a comma where I would take a breath.