One suggestion I saw about research, and I used last time I did NaNo:

It's good to get in a bunch of research now, so you're writing what you know. But chances are when you actually get to writing, you'll run into something you know nothing about. Say it's November, and you're writing away, and somehow you need to know details of... I don't know. Burial practices of the Incas before European contact. How many tail feathers a great tit has. (Don't look at me like that. It's a bird. Look it up.) How the controls of an aircraft carrier are arranged. Whatever. Details.

If you take the time to research that stuff in November, that's going to take away time from getting word count. And what's important is getting word count. Now, if it's absolutely, inescapably essential to your plot that the number of tail feathers on a pun-worthy European bird be known, fine. But most of these things are just nonessential or tangential to the plot. Get your word count, mark the passage in some way to remind yourself to do research later, and move on.