Apartment Therapy LA had this interesting tidbit about Vanilla extract.
Vanilla extract packs a wallop of scent packed strength: easily deodorize that pungent microwave with just a little extract; heat a small amount on High for about a minute. Or rid yourself of the funky bouquet of a week’s worth of leftovers in your fridge with a soaked cotton ball using nature’s deodorizer. Mix a tablespoon into a can of interior paint, and the fumes will be dampened by vanilla’s charms. And because vanilla is a natural insect repellent, not only will your place smell deliciously welcoming, but it will be naturally free of mosquitoes, blackflies, and ticks.