The best place to put a Christmas tree in your living room is in the corner that is closest to the window. This will ensure that the tree gets plenty of natural light and that it will be visible from all angles. Additionally, placing the tree in the corner will make it easier to decorate and will make the room feel more spacious. If your living room is large, you may also consider placing two trees side by side for a more dramatic effect. Whichever placement you choose, make sure to position the tree where it will be a focal point of the room.