Removing Tub Ring
Regular dandruff shampoo will get rid of that black ring in your bathtub (or other spots in the tub). When the tub is dry, slather on the shampoo and let sit for an hour or more. Scrub off and rinse well and your tub will be shiny! You may have to repeat for really bad stains.
(I haven't tried this yet, if you try it before I do, let me know how it works)


