Q: I just bought a house that has beautiful tile in the shower, but the grout is looking dingy and gross. The tiles look like marble to me, but I didn't install them so I am not 100% positive. What is the best way to clean the grout without damaging the marble? I am not opposed to getting in there with a toothbrush! The first photo is how the tile looks when it's clean, outside of the shower, and the second is how it looks inside the shower. Thanks for the advice!!
Editor: Leave your suggestions for Sara in the comments — thanks!
• Got a question? Send us yours with pic attachments here (those with pics get answered first).