Oven cleaning is not the nicest part of home improvement, especially if you don’t have a self-cleaning one. A set of rules how often to clean or not just doesn’t exist. Some households use their ovens so occasionally, that the first actual cleaning happens two years after the purchase. It turns out that if you don’t bake a lot, then you don’t need to clean a lot, but if you forget to do it, the things will get messy.
