Here in Mexico, we have a custom named "maratĂłn Guadalupe - Reyes", which means the start of the holiday's (plus parties, gatherings, you name it) start from the Virgin Mary's celebration on Dec 12 until Reyes Magos in January, which is usually the day all X-Mas decorations get stored.
I like it that way, Xmas lights and decorations always cheer me up, so enjoying them for one more week is always nice.