Noone has mentioned it, but apparently orange-based cleaners are supposed to be brilliant. They have been on infomercials in the US for ages (anyone who has watched American TV will know what I mean; buy a 750ml bottle for $19.95, and get 40 gallons free if you order within the next 20 mins). My dad runs a property management company over there for short-term-rental villas, and his cleaners swear by them (they say it's really good for glass shower enclosures which are supposed to be harder to clean).
They are just starting to come over here, but still not that common.
here is an example, if you want to know what I mean.
HTH.