I just wanted to thank the MNers on previous threads who raved about the benefits of hiring someone to clean their ovens. I just had a very pleasant man in to clean my (in-hideous-need-of-a-clean) oven. It looks brand new!! He didn't even use any caustic chemicals. And get this, he only charged £47. Best £47 I've spent in a long time. Thanks MNers for showing me the light. I will never clean my own oven again!