Instead of using the chemical air fresheners you see advertised on television, save your money and freshen your home or office naturally. Make great- smelling potpourri with herbs and spices. Boil a mixture of cinnamon and cloves on your stove. Dip a cotton ball into pure vanilla extract and place it on a saucer to absorb odors. Keep a small bowl of baking soda in the refrigerator to keep it fresh smelling. And, simply open a window to let fresh air in.