As for motivation/inspiration/time-related thingies, here are some things that have helped me in the past, with two quick disclaimers: first, they don't all necessarily work well for the same project at the same time (and obviously not every trick is going to work for everyone in the first place, blah blah blah), but have managed to do something useful for me at
some point and so they're worth a shot; and second, I have not yet actually tried some of these explicitly for NaNo, or at least not this year's NaNo, but they've helped with past NaNos or with other projects and I expect that they'll be of some use to me this month as well.
1. Write as much as you can, as fast as you can for an hour (or some other period of time, but in years past I've found an hour to be a pretty good baseline), without stopping if you can help it, and when the timer goes off see how many words you were able to crank out. Most people seem to be able to get 1600 words or more in one straight hour of typing—I think I can get around 2000 if I really concentrate—and sometimes just knowing that is enough to help get you through the writing for a while. It doesn't seem so bad or so time-consuming if you know that you can bang out the daily minimum or more in just one hour out of a whole twenty-four!
2. Let yourself take breaks if you need it. Maybe not six-day breaks like mine oops, but if you're really
so horribly blocked that you can't even force terse crap onto the page, it may in fact be best to shift gears for a little while. Get away from the computer and go for a walk. If you're working on more than one story (whether or not more than one is for NaNo), try writing the other story/project for a while and see if that comes more easily. If you don't want to put too much distance between yourself and your current NaNo plans (though really, letting go for an hour or two does often help), you can do what I'll likely be doing and spend that time doing other story-related work instead. I may have enough worldbuilding and plotting to get me started, but there's still a lot more research and planning I need to do anyway for the final product. If I work on that during some of my writing breaks, I'm still ultimately contributing to moving my story forward even though I'm not actively vomiting irredeemable garbage "prose" into the story itself... and working on the worldbuilding/research will likely give me ideas that will help me get the story back on track, too! Just don't get so absorbed in your break/other work that you
do end up spending six days getting nothing done, because that is bad. I mean, you can absolutely catch up—I fell much further behind than this in 2008 and still managed to pull off a win in the end—but you should still try to write at least a little bit every day! As some of the recent pep talks I've seen have said, even if you're only writing a sentence a day, you're still moving forward!
3. On that note, maybe try the best of both points 1 and 2! There is a mind hack/productivity technique called the "Magic Work Cycle", which in a nutshell is working without interruption for a set period (usually half an hour), then "playing" or doing something else for a half hour, then working for a half hour, so on and so forth. There is a nifty website/app thing
here that will time it for you (and you can adjust the time if you don't want to do the usual 30 min/30 min), but even a kitchen timer or alarm or something will do. The idea is that you're more likely to get a lot of good work done during that half hour if you have the promise of an equally-lengthy break at the end of it, and breaking the hard work into half-hour chunks makes it seem more manageable in general. When I've used this for school projects and the like, though, I haven't even really thought of it as "just five more minutes and I can stop for half an hour ugh". Just the thought of the timer going on in the background is often enough to make me
want to do as much as I can in that half hour, break or no break. So as soon as I'm done typing this (which has taken far too long already aaaaa), I'm going to set the timer, write as much as I can for half an hour (which should hopefully be a thousand words or so), then do worldbuildy things for half an hour, then write for half an hour... you get the idea! I haven't actually tried this with writing yet, but ideally it will work just as well as it has for other tasks!
4. Meanwhile, in the same vein as pep talks, it might be worth joining your NaNo region so that you get additional pep talks and useful emails from your local MLs as well. I can only speak for my own region, of course, but the NaNoLanta Pandas have had some pretty cool things to say in years past, and I'm sure most other regions' mailings are equally cool!
4.5. Go read through the past few years' NaNo threads and read some of Hiikaru's posts. Seriously, some of the best pep talks/ideas and
so cheerful and argh Hiikaru is awesome. ;-; (Upon closer inspection some of my advice just is reiterating some of what they said in their last post in this thread, but if Hiikaru thinks it is a good idea then it probably is! and then just a few extra helpful tips for working with those ideas hopefully?)
5. Try going to a write-in or something similar. I enjoyed myself and was actually quite productive at the two I went to in 2009—word wars are pretty fun when you conduct them in person, and in general surrounding yourself with caffeinated strangers who are doing the same crazy thing that you are is surprisingly motivating! (Just plain getting out of the house and writing in a different environment is often a big help, too.) Joining your region should also net you emails about/links to resources for finding a write-in near you, so there's that reason to sign up as well.
6. Try writing in a distraction-free environment instead of your usual word processor. A full-screen interface that hides the rest of your browser/desktop/dock/taskbar/computer and has very few toolbars/options, and often very few tempting-but-usually-unnecessary formatting capabilities, can help you keep your mind on your work. They're also nice because many of them include settings to let you easily adjust the background and text colors to something that's comfortable for you, and a few even have stuff like typewriter sounds if you really want to feel like you're away from a computer without being away from a computer. Right now I'm using
Writebox, an online environment (also available as a Chrome extension) that edits text files either in your browser's local storage or on your Dropbox account—I usually write in text files these days anyway, and this has a less distracting interface than my usual text editor + a word count at the bottom. In the past, though, I've tried several others and they're all pretty good at what they do, and there are a lot of them out there you can try. I've used WriteMonkey for Windows, Focus Writer for Linux, and there are plenty of others like Q10 and DarkRoom and WriteRoom and more for those two OSes and Macs as well. If your browser can use the Stylish extension or something like it, there are even user styles that can give Google Docs/Drive a similar distraction-free look when used in full screen.
7. And while I'm on the subject of Dropbox and GDocs, back up your work! This is not directly related to productivity, but every year I am apparently the BACK UP YOUR CRAP PLEASE evangelist, and even though so far this year there have been no reports (that I'm aware of, anyway) of people losing tons of work, it's worth saying anyway. Almost every year someone on TCoD
has lost work for one reason or another, myself included, and if you take steps to back things up as soon as possible then you'll be in a better position should tragedy strike. Paste your story into Google Docs, use Dropbox, store work on more than one flash drive/hard drive, email it to yourself, whatever! As long as it's in more than one place, preferably at least one online and one offline imo, you are far less likely to lose work (or to temporarily lose all access to it should your internet or one of your computers go on the fritz or something)! Saving the files you're working on in a Dropbox folder as I'm doing accomplishes the online-offline bit in one fell swoop, since it's both in the Dropbox folder on your computer and stored on the Dropbox servers with minimal effort on your part! (Though I'm still pasting things into GDocs
just in case.) And hey, peace of mind certainly can't
hurt your productivity, can it?
Also, yesterday when I
finally got back to writing I tried doing it on my netbook instead of my desktop! I did it mostly because I'm still afraid of annihilating my wrists and was curious as to whether sitting away from the desk might help—it appears to have done so, so hopefully it will remain consistently painless!—but it also helped a little bit with the constant urge to click around on other things. I still had the desktop on and accessible if I really needed to check my notes or look something up or caved and just
had to look at Tumblr or whatever, but otherwise I had the Writebox tab on my browser fullscreened and I sat just far enough away that even though the desktop browser was open, I wasn't actually all that tempted to get up and walk over to it just to goof off. So if you have a laptop or similar then maybe that's something to try?