Hello, I have a small bathroom but it's completely tiled apart from the ceiling. I don't have the money or the man power to regrout but it looks so tired and grubby (been like this since I moved 3 years ago). Can anyone recommend a way to clean it without too much elbow grease? Is there a magical product that I don't know about? Please give me ALL your wisdom! I'm so fed up of living in a bathroom hovel!!!