You need to power through a week? I can help you with that!
Rule #1: NEVER operate a vehicle after not having enough sleep. Seriously. You may feel fine, but as soon as you start driving, you WILL fall asleep and kill yourself or someone else. So, don't do it.
Rule #2: No fooling around! If you're staying up all week, it's because you have something to do. So, if you aren't working on that, doing something to reenergize yourself, or sleeping, STOP IT! That means no webdiplomacy.
Rule #3: Ask yourself, is this really necessary? Can you sleep and get it done? If so, do that instead.
So, here are my suggestions:
1) Sleep as much as you can. Can't work for some reason? Sleep. Even if it's only for 5 minutes.
2) Never be alone. It's easy to fall asleep or hurt yourself if you're alone. Can't be with someone? Listen to bad music (Rebecca Black) loudly.
3) Take a lot of cold showers. Don't stay in there long, or you'll defeat the purpose of staying awake to gain time. But, when you find you really can't stay awake, dive in for a 5 min unheated shower.
4) Eat often. Don't eat much at one time; you don't want to become full and tired. Just enough to keep tricking your body into thinking the days started because you're eating.
5) Stay away from drugs as long as possible. You're body is already sad because you won't sleep, adding things like caffeine will just make it worse. As you get further into your own personal hell, you won't be able to handle the crashes either. Try to save drugs for the 11th hour.
Good Luck! : )