A type of volcanic rock, a pumice stone is a lightweight yet effective tool for removing stains on hard-to-remove stones—without scratching them. This pumice stone is 20 percent denser than similar models to really slough away stuck-on stains found on your toilet bowl, shower, sink, wall tiles, grill, and more. Despite its tough exterior, its ingredients are odorless, chemical-free, non-toxic, and eco-friendly. To buy: $9 (was $12); amazon.com. A $9 pumice stone may feel like an uninspired cleaning tool, but shoppers are so pleased with the results, they’re calling it “magic.” Others joke that they could hear “the angels sing” after the pumice stone helped them remove the rusty-colored water lines from their apartment toilet. “Never thought I’d get excited about toilets,” another reviewer starts before snapping before-and-after photos of their results. Another unexpected feature? One shopper says they used a bit of the broken-off pumice to exfoliate their dry skin and calluses—though we recommend shelling out the extra $7 for a fresh set of spa tools.