AT LAST!
Here's a glass shower cubicle cleaner which removes that stubborn, almost invisble thin layer of soap-scum which builds up to make the whole thing look 'tired'.
Normal [and "de luxe"] glass cleaners just don't cut it, but this Johnson's product is great.
• Spray on, leave a minute or so, wipe over with a wet "Spontex", then rinse.
My expensive bathroom re-fit was starting to lose its sparkle, but its back to its just-installed look now. :-)