One of my least favorite job is scrubbing the stove. I found this idea on pinterest.com that makes cleaning my gas stove a breeze! Take me away Calgon! (oops, I showing my age!)
Place your stove top pieces in a plastic bag and pour ammonia over the top. Let it sit overnight. Wake up the next day and all that baked on crud comes right off! It really, really works!
I am assuming that you close the bag up, right?