I usually tell parishioners that we celebrate "two Christmasses."
One involves the secular hoopla. It's fun; you can't avoid it; it begins the day before Thanksgiving and it is packed with all that "stuff" that ranges from office parties, through shopping sprees, winter carnivals, store decorations, "Christmas specials" on television, etc. etc.
The other involves a pious Advent, the eucharist on Christmas Eve and Christmas day, carols sung by people who believe the words they sing, the festivals of St. Stephen, St. John and Holy Innocents, and the days leading up to Epiphany.