So tonight is one of the biggest party nights of the year: people who are normally in bed by 9pm will be staying up until the stroke of midnight, and those who are usually up late will be staying up even later. Many people will have at least a little alcohol, even if it's just a celebratory glass of champagne, and some will let it get a little crazy and have a little more than just that midnight drink -- and they'll be paying the price tomorrow with a nasty hangover.

The most effective treatments if you do end up with a hangover? Sleeping, drinking lots of water, and (I'm not kidding!) exercising. And, according to doctors, the number one WORST thing you can do in an attempt to heal a hangover is to drink more alcohol.

It never hurts to be prepared, so this article on home remedies for a hangover might be worth a closer read. That way if you, or a friend who crashes at your place, is miserable tomorrow morning you'll be prepared to make the best of it.