You have already spent time, money and resources, preparing your home with new paint, wall paper, tile, and carpet, or whatever it took to get to this point for what I call the finishing touch.
Lets start one room at a time, first move everything out except your very large furniture pieces. Now sit down and look around, are you satisfied with your present furniture, if not consider reupholstering your furniture pieces or you may head out to a couple of furniture stores and check out there selections and prices. Maybe you decide that what you have is fine, thats okay. Whatever choice you make, if its new furniture, new fabric or keeping what you have; make sure it blends in color wise to your room.
Now you have the appropriate furniture in place, lets look at your window and doors. Unless you live in the perfect year round climate or have the latest insulating windows installed, you may want to consider some form of curtains or drapes that will insulate from the cold and the sun. There are fabric or vinyl curtains, wood or vinyl shutters, blinds and shades that may help. Windows and doors give you views and if youre satisfied with these views, then take advantage...