Here are some that affect all writers. Writers can be grateful for readers. And readers certainly do deserve an author's gratitude. Writers can be grateful for autumn. If you live in an area where the trees turn color, then this season is one of special beauty.
Autumn brings a fulfillment, the ending of spring's promise, and the harvest.
It is a time to be grateful for the bounty of the land, to recharge your creative batteries. In a practical vein, autumn brings cooler, rainy weather, when staying indoors and writing is much easier than in summer's inviting sunshine. Autumn can also be a time of beginnings, time to pick up that manuscript you put down in the spring, dust it off, and get to work again. Writers can be grateful for autumn. Writers can be grateful for things to do.