I only realised this tonight, looking at the horrendously dusty light fitting. We've never changed it in all the years we've been here. To be fair, it's a well lit landing (massive window) & city light pollution means you can see where you're going even at night. & our tumble drier, may it last forever, has provided sterling service for the last 20yrs & at our worst we thrashed it with 14 loads a week (thank you dc). What appliances have you got that seem to go on forever?