I'm wondering what sort of advise you & the UFYH hive-mind might have when it comes to cleaning the oven. Mine is bad... so bad... and I'm not crazy about using the super noxious oven cleaning chemicals. And I don't have a "self clean" cycle, but that doesn't really work anyway.
Cover the interior of the bottom of the oven with a fairly substantial amount of baking soda; enough to fully cover it. Use a spray bottle to spray vinegar on top of the baking soda (this will fizz up, making an awesome oven volcano). Spray vinegar on the sides of the oven, the inside of the door, and anywhere else. Let it sit for a few hours, overnight if you can. Use a damp sponge or damp clean rag to wipe everything down, rinsing and rewetting frequently. Have a scrub brush on hand for any stubborn spots.
Also Magic Eraser!
I know this sounds crazy, but I clean my microwave by heating a bowl of vinegar and water in it. The vinegar-water mixture makes it a breeze to wipe down the interior of the microwave—maybe a larger scale version of that would work for the oven?