Natural air freshener: 1)In a shallow dish, add 2-3 tsp of vanilla extract. Microwave for 1 minute at highest setting. Take it out and it let the aroma spread 2) Smear two drops of vanilla extract on cold light bulb's surface. Turn on the lights and enjoy the scent of warmed vanilla in your home. 3) Moisten cotton balls with vanilla extract, and leave them in musty closets, bathrooms, basements and the fridge to neutralize food smells.