There's still nothing better for absorbing fridge odors than baking soda. Try Arm & Hammer's Fridge-n-Freezer Deodorizer ($1.50 at supermarkets), which has front and back windows lined with a cheesecloth-like fabric to maximize ventilation. Vanilla extract is also an effective remedy: Soak a cotton ball in it and leave the cotton ball exposed on a dish until dry.