Excuse: Too busy updating Twitter/Facebook/Tmblr/Livejournal
They say that writing is a lonely job, but it's not. It's really not! The entire internet is crawling with novelists looking for something, be it drawings of historical Dalmatae women's clothing, hints about Phonecian writing implements, advice about query letters, or simply a little moral support. And never more than during November.
So, in a way, it's in your best interest to continually update every form of social media to which you belong. It's not procrastination, it's networking!
Plus, it is so endlessly fascinating to the 102 people who follow you on Twitter how many words you've written since last you updated with your wordcount. It really is. I promise.