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OxiClean, a versatile and effective stain remover, was a signature product promoted by Billy Mays. Its oxygenated formula made it a household favorite for removing tough stains, and Mays' enthusiastic and memorable TV commercials further cemented its popularity. OxiClean's success and widespread recognition can largely be attributed to Mays' charismatic and convincing demonstrations, showcasing its remarkable stain-lifting capabilities.