Ready for Christmas?

Cashiers keep asking if I am "Ready for Christmas?" yet.
I know, they're just making polite chit-chat and Christmas is particularly hard on retail workers.
Of course I am not at all ready. We only just started playing Christmas music (Tony Bennet) at home last night, although it's been playing for about two weeks over the Buy Food's Muzak system. At least this year I am employed so my Snugglebunny is actually talking a tree and feast and the budget will even run to a few presents.
Some of my co-workers have been decorating since mid-November, made long bus trips to the US big box stores in search of deals and even braved Black Friday mobs.
I'm selling more baking supplies, so I imagine all across town there is a flurry of holiday baking as women reacquaint themselves with their ovens, dig out long unused baking trays and mixing bowls and search for clipped out from old magazines and filed away recipes for cookies, squares and tarts.
But what does it really mean to be ready for Christmas? 
Decorations up? Presents bought and wrapped? Food prepared? House cleaned?
Can one ever be truly ready for an intrusion of in-laws or the Incarnation of God?