The answer to 'tough stains on move-out cleaning' is to first identify the type of stain and then use the appropriate cleaning method. Common tough stains include grease, ink, wine, and dried-on food. For grease stains, use a degreasing agent or baking soda paste. Ink stains may require an enzyme-based cleaner or rubbing alcohol. Wine stains can be treated with club soda or white vinegar. Dried-on food may need a stiff brush and hot water to scrub it away.
If the stains are particularly stubborn or cover a large area, it's best to call in a professional cleaning service. They have access to commercial-grade cleaning products and equipment that can tackle even the toughest messes. DIY methods may not be effective, and you risk damaging surfaces if you don't know what you're doing.