You love your plastic patio furniture, but because it is porous, it can harbor stains that are embedded in and stubborn to remove. Don’t scrub! Instead, spray on some shaving cream (not gel) and leave on for 5 minutes before wiping off with a damp cloth. Shaving cream is mostly condensed soap and stearic acid so it can lift dirt from the surface. Get ready for the barbecue because your furniture is nice and clean!