I've had good luck with a straight razor blade to scrape the burnt on stuff that wouldn't come off with ceramabrite or a baking soda paste. After carefully scraping and following it up with the cooktop cleaner, it looked practically new...mine is a whirlpool black cooktop, so it shows everything.
I would like to win the trunk organizer or the professional detail bag. I just purchased quite a few different car detailing products and don't have an organized way of storing them...right now they are all in walmart sacks :( Thank you Autogeek for the free enty!!