Remove unsightly yellow stains from pillows with a powerful combination of baking soda and white vinegar. This cleaning hack is perfect for refreshing pillows between washes, effectively tackling stains caused by sweat, oils, cosmetics, and other body fluids. Baking soda and vinegar work together to create a fizzing action that lifts stains, while the acidity of vinegar also deters dust mites. Apply baking soda to the stain, scrub with vinegar using an old toothbrush, and wipe away any residue with a damp cloth. For added convenience, spray vinegar directly onto the baking soda and allow it to fizz before scrubbing. Maintain pillow freshness by encasing them in pillow protectors and pillowcases, and occasionally misting them with linen spray infused with soothing essential oils like lavender or cedarwood.