For me, this has been an all-year project. I spent the whole year organizing and buying decorations, and I started putting up some of the lights way back in July. I set up my [artificial] Christmas tree by Labor Day, with more lights than the hounders know what to do with. There are garlands running around the perimeter of the apartment, with lights running alongside them and ornaments hanging from them at every possible point. Figurines and music box waterglobes are everywhere. And I have a large number of Christmas songs in my computer.
No, I will not be able to put anything outside. That is against the rules of my complex. They don't even want anything in the windows until Thanksgiving (but they cannot do anything about what's within the apartment). That rules out inflatables, icicles along the roof, or lawn or roof ornaments. And it is difficult to attach anything to my ceilings, which unlike the wall cannot be spackled for the tiny holes put in to hold the garlands and lights.
Any Witlesses coming in will be greeted with a wreath (lighted) on my interior door. When they get in, they will see a hallway lit with garland and Santa Claus ornaments, with a big fat cross being the first ornament they will see. Look into my living room, and the Christmas tree along with a million ornaments will greet them. Anywhere there can be decorations, is decorated. And they had better leave their damn eggs at home, or I will pull out my Ouija board and sic the demons on them. (That ought to get them running out quicker than a copy of Crisis of Conscience book).