I was experimenting with some of the green cleaning products I use, and found that simple white vinegar really is the best thing for getting rid of limescale and water marks! It’s tricky to find in the high street, but it’s cheap and surprisingly effective. I was sceptical about the vinegar hype, but it does actually work! (I swooshed over things with Eco Squirt to make it smell less like a chippy after, and buffed with an E-Cloth.. perfect sparkly chrome - LimeLite chemical cleaner no longer needed - RESULT!)