During winter months, baking a frozen loaf of bread, cookies, or pie can be an inviting fragrance. And though you never want to over-perfume your home, you may want to light a candle as a quick and aromatic remedy. Stay away from sharp floral scents and stick with a vanilla or cinnamon fragrance. If heavy drapes or curtains block the view, leave them open. The same goes for any kind of blind.
Light makes a room seem bright and cheery.
Clean windows and screens, inside and out, to make a big impact on the light coming into a room. If you have a room or two with dark walls or no windows, leave a few of the lights on at all times during showings. If overhead lighting seems too stark, try just leaving on a lamp or two for drama. In the kitchen and bath, consider setting out guest towels and soaps. Inevitably, a visitor or two will be in need during the showing.