Cleaning and Stain Removal - Cleaning Pfaltzgraff dinnerware

I have a lovely set of Pfaltzgraff dinnerware..........they are white and get little black marks on them..... from using knives and other utensils, I assume. I have the Pfaltzgraff cleaner which I now use to clean the marks off, but would like to find something easier to use..........you REALLY have to scrub and scrub with the cleaner..........is there a simpler, less strenuous method to clean my dinnerware??

A mild abrasive can be used. Baking soda and water paste is effective. Soft Scrub, BarKeeper's Friend, or other mild abrasive are effective.

I have found since I first posted this problem that if I spread the Pfaltzgraff cleaner on the plate and leave it there for several hours.........so it's pretty much dried out, that it wipes off with a damp cloth and all the marks are gone........not a quick way to do it, but it's very effective and a lot less elbow grease :D Directions say to just leave it on a short time, but the longer time seems to do the trick.
Thanks, though.....if I'm in a hurry, I try one of those things. :)