“Dilute laundry detergent and apply it directly to the carpet stain,” says Evans. “Using laundry detergent as a mopping solution works because the detergent contains powerful cleaning agents and surfactants that effectively break down dirt, grime, and stains,” says Sharp. But if you tend to buy laundry detergent without fragrances, with fewer chemical additives, and is typically clear, you’ll be fine. Tips For Successfully Using Laundry DetergentBefore you use laundry detergent directly on a fabric or surface, do a small spot check in a hidden area. “Remember most laundry detergent is very concentrated so you will need a lot less than you think you do,” says Sharp.