And, in Sweden, Christmas goes on and on. Here the thirteenth day of christmas (Trettondagen) is a public holiday as is Trettondags Eve (Trettondagsafton). And the carol which "celebrates" this ("On the first day of Xmas my true love gave to me...) is a classic spend, spend, spend carol.
The two bank holidays at the end of Xmas are always just too much...
Twelfth Night is, of course, a Shakespeare play, a cross-dressing comedy.