This is a question that has popped up lately in conversations: How do you keep the mold off a Paris shower wall with poor ventilation? Answer: Using the right products and vigilance after everyone has showered. For a long time I was using a window/wall wiper and a multiusage cleaning product. Then I would wipe the walls with a sponge or microfiber cloth. This worked but lacked a certain cleaning power on the white grout (the filler between the tiles). I tried vinegar, even mixing it with scented face water to tone down the strong smell. Until one day, my yellow bath pouf (fleur de bain) was dying. It had…