Stains in kitchen sink

Everyone has given you great suggestions on how to clean it. mine is plastic rather than solid surface, so it the freshly cleaned sink would stain the first time somebody poured coffee leftover down the sink. Or red wine or tomato etc. so, after a through cleaning, I now apply a protective coating. First I tried auto wax; it applied easily, ******** staining greatly but needs rather frequent reapplication (dish detergent and sink cleanings wore it away faster than on the car, of course). Recently, I have been trying Mop-n-glo. A few light coats and the plastic shines nicely. Since I am doing multiple coats, it takes a bit longer to apply though it seems to last longer and is shinier than the wax. It does resists food stains well. If stains are your issue, you could give one of the these coatings a try. They are easy enough to remove if they do not work for your surface.