Buy Nothing Day...
Stand up against the mindless consumerism of the Holiday season, if only for one day. The day after Thanksgiving, the biggest shopping day of the year (at least in the US of A), BUY NOTHING unless you absolutely have to (i.e. food). Instead, take some time to think about why you buy the things you do and how your money and attenction can be used elsewhere in your life.
http://www.adbusters.org/home/