Does anyone have any cleaning tips for getting the grime off a black enamel stove top? Mine got really gunked up when canning tomatoes and peaches. I started with Windex with vinegar in it (what I normally use) and it got a lot of it off, followed by a Mr. Clean magic eraser, which got some additional off. But there are still places with dark, almost baked on, spots that aren't coming clean, as well as some greasy-type smears that aren't wiping off. What do you use? Open to any and all suggestions.