Best thing for cleaning the oven and just about everything else around the house was a thing called WIFE. Unfortunately it was a bit on the expensive side and after years of putting up with incessant chatter I moved on and now a slightly dirty oven doesn't seem to be that much of an issue. Although, I have recently been re-adopted by "single-again-Son" a strange being that cannot close any door, turn off any light, pick up anything from the floor, load or unload the dishwasher, remove lint from dryer etc. We have recently been discussing the mystery as to why towels dropped on the bathroom floor do not dry themselves any more than the vacuum cleaner empties itself when absolutely full to bursting. He has yet the master the most complicated machine devised my man: the toilet roll holder. I have explained that the cardboard tube has to be moved sideways to remove it and a fresh roll put in it's place. So far he only mastered the placement of said paper on the floor in the general vicinity. Well he's only 37 bless him.
