What works best for deep stains on fabric or surfaces?

A thick paste of baking soda and dish soap (like Dawn) works best. Apply it, rub gently, let sit for 15–20 minutes, then rinse with cold water. No bleach needed—the baking soda lifts stains physically and dish soap cuts oils. For stubborn marks, follow with a white vinegar and water soak (1:3) or leave damp in sunlight. Avoid hot water, as it can set some stains.