To clean chrome shower rails, start by mixing equal parts of water and vinegar in a spray bottle. Spray the solution onto the rails and let it sit for a few minutes. Then, scrub the rails gently using a soft cloth or sponge. For stubborn stains, you can use a non-abrasive cleaner specifically designed for chrome surfaces. Rinse the rails thoroughly with warm water and wipe them dry with a clean cloth. To prevent future build-up, you can apply a thin layer of baby oil or chrome polish using a clean cloth. Remember to avoid using abrasive cleaners or scrubbing tools that can scratch or damage the chrome surface. Regular cleaning and maintenance will keep your chrome shower rails looking shiny and new.