Not until second week of December.
November we decorate with Thanksgiving and autumn style, such as Indian corn on the front door, pumpkins, autumn leaves, turkeys (not alive, ha, ha).
First week of December is neutral--no special decorating--I like to have a "space" between holidays. Also, Hubby's birthday is during first week of December, so I like to celebrate his birthday separate from Christmas.
Second week of December my vacation from work begins. I start decorating for Christmas then. We don't decorate too much. Indoors we have a nativity scene, Christmas tree with nautical decorations, small fiber optic tree in front entry, a few things on the fireplace mantel, and a table centerpiece. Outdoors we string lights on the front porch, hang a wreath on the front door, and decorate the mailbox.