Festivus: I will summarize wiki since there is a lot not needed.
Festivus is an annual holiday, many people now celebrate the holiday on December 23. In general a non-denominational holiday to be celebrated by those frustrated or jaded with the commercialism and pressure surrounding the Christmas/Hanukkah/Kwanzaa season
The tradition of Festivus begins with an aluminum pole. During Festivus, the Festivus Pole is displayed unadorned. The pole was chosen apparently in opposition to the commercialization of highly decorated Christmas trees, because it is very low-maintenance and not flashy.
The holiday includes novel practices such as the "Airing of Grievances" before dinner, in which each person tells everyone else all the ways they have disappointed him or her over the past year. Also, after the Festivus meal, the "Feats of Strength" are performed, involving wrestling the head of the household to the floor, with the holiday ending only if the head of the household is actually pinned.
There are also "Festivus Miracles", which are minor coincidences that are usually inconvenient for one or both of the involved parties, e.g. 2 people that have bad blood see each other on this day.
“I'm a simple man. All I want is enough sleep for two normal men, enough whiskey for three, and enough women for four.” -Joel Rosenberg