Mostly we do Christmas like DH had it as a child (no church, stockings downstairs, presents in a single block before lunch, etc). The only thing that comes from my childhood is that Santa delivers the presents (they are labelled according to who sent them, not as being from Santa).
Yet again I have had to remind DH of this (he's been putting the presents straight under the tree as he wraps them). He has to be reminded every year. AIBU to be really pissed off with him?