Now I'm fully prepared to accept that the answer to this may be 'scrub your kitchen down, you slummer!'
That said, when we got in last night, it really struck me that our kitchen smelled of old, greasy cooking oil. I'm pretty good about washing up straight after dinner, and (usually, ahem) OK about cleaning up the top of the cooker (don't use the oven or grill much), but we don't have any kind of extractor fan or overhead oven canopy thingy, and we rent, so that's unlikely to change.
What's the best way to get rid of this smell, and to try and stop it coming back in future?