I finally got around to cleaning the bathroom tile and grout, and it's amazing how much of a difference it makes. The grout was looking dingy and almost black in spots, but after some scrubbing with a stiff brush and a baking soda paste, it's bright white again. The floor tiles look like new, and the whole room feels cleaner. It's tedious work, but definitely worth it for that fresh, deep clean feeling. tile and grout cleaning 3