I personally think December 21, 2012 will be as meaningful as crossing into the southern hemisphere on earth. That is what earth is going to do in the galaxy on that day--we will cross into the southern hemisphere of the galaxy. No big deal--aside more doomsday forecasts and Washtowel predictions that Armageddon will come then.
However, I still advise people to get off the fluoride treatments that are ruining our brains and pineal glands. (And I advise researching "pineal gland health".) Fluoride ruins your pineal gland, among other things--which is said to be the seat of your connection to the universe. Let that get closed off, and you cannot attract anything good into your life. Whether or not that is true, ridding your body of fluoride will have health benefits--you will sleep better, and most likely have more energy. At the very least, you will not be sedated into letting the Establishment doing your thinking (and, if you are contemplating becoming one of Jehovah's Witlesses or know someone that is, joining them first and asking questions later). Bonus: You will probably have fewer cavities, better bones, and a lower risk of getting sick if you get off the fluoride. Remember, the poison is in your water--again, I suggest researching what form of fluoride is added to the water supply.