Dread. Yes, it's pure dread. That oven of yours is disgusting, especially after that last souffle disaster. Trouble is, the thought of spraying all those chemicals makes you cringe. So, go natural. Dampen the crust with a little water and sprinkle with salt. Scrub until the baked-on nastiness breaks up. Now, clean the grime off the window with a cloth dipped in baking soda.