Over the past ten years or so, I've often spent the month of November bent over the keyboard banging out a novel. Why? Because November is National Novel Writing Month, otherwise known as NaNoWriMo. During the 30 days of the month, you're encourage to write an average of 1,666 words per day to achieve one goal -- writing a 50,000-word novel. It's not that hard -- I've actually written four novels, although I won't consider actually publishing three of them. But the fourth one? When I get the time, it'll be an ebook.
I'm NOT writing a novel this year. I was diagnosed with De Quervain Syndrome in my right wrist, and although treatment seems like it was a success, I really don't want to aggravate that wrist by typing any more than I already do. But if you decide to write the Great American (or British, French, Canadian, Mexican, Australian, Polish, etc...) Novel in my place, you'll have a wonderful tool to use to write it.
My writing tool of choice on iPad and Mac is Ulysses. It's an amazing app from German developers The Soulmen that lets you just type (in plain text or Markdown) with few distractions, see what your document will look like, and then export it in a number of formats. I use it for all of my drafts of AWT posts, sometimes going between iPad and Mac depending on where I am writing. Well, the Soulmen are making Ulysses for Mac free to use for NaNoWriMo participants until December 7, 2015.
If you like the app -- and I'm sure you'll get as hooked on it as I have -- you can purchase the Mac version of Ulysses for US$44.99 and/or the iPad version of Ulysses for $19.99. Use it to polish up that 50,000-word novel before you send it off to your publisher, OK?