How can I effectively use a mixture of baking soda and vinegar to remove tough stains?

To effectively use a mixture of baking soda and vinegar to remove tough stains, first sprinkle baking soda on the stained area. Then, pour vinegar over the baking soda to create a foaming reaction. Let it sit for a few minutes before scrubbing the area with a brush or cloth. Rinse with water and repeat if necessary. This combination can help break down and lift tough stains effectively.