Do you prefer to write mysteries or romances, thrillers or fantasies, science fiction or historical fiction? Whatever genre you prefer to write, I'm sure you can find a way to include one of the goofy holidays that occur in March in your story. It will add a bit of something different to your story.
What illusion will you create on Festival of Smoke and Mirrors Day? Will you start your own business on National Mom & Pop Business Owner's Day? Will you visit Niagara Falls on Niagara Falls Runs Dry Day? Niagara Falls Runs Dry Day & Other Weird Holidays