I've received a parcel today that was just addressed to: <my name>, Stratford-upon-Avon (the <my name> was obviously my actual name)
Pretty amazing for Royal Mail, although I do have an unusual surname and, AFAIK, the only person with that name in the town. Not sure if that makes me famous or infamous?
I have had in the past letters from the US that were just addressed : Name, House number, Postcode, UK
Rob