Quick reference

AUs
In order that they retire

Snowman Account Upgrade (Dec 25)
Phantom Account Upgrade (Dec 31)
Water Account Upgrade (Jan 20)
Mini Christmas AUs (Jan 31)

Events
In order that they END
Gurple Dec.15th
Elf Dec.25th
Krampus Dec.25th
Secret Santa Dec.25th
Advent Calendar Dec.31st
Christmas Caroling Dec.31st
Santa Claws Raffle Jan.1st