National Novel Writing Month-NaNoWriMo

It's here again, NaNoWriMo. I love November for that reason, plus Thanksgiving. I've entered NaNo three times not counting this year and have won in 2010 and 2011. Last year I was editing my book, Sugarwater Ranch in advance of publication.
Great friends and happy times are NaNoWriMo staples. Come on everyone, write that book.
Have you ever entered NaNoWriMo? Are you entered this year?