Afternoon tea - the "English aunts" always had this
Kippers for breakfast - described to me and made me go "ewwwww!"
Fish 'n' chips wrapped in newspaper - I don't know, literary culture references I guess
Stiff upper lip - just a cultural thing I've always associated with being very English
Hats and gloves for fancy ocassions - all media coverage, and English ladies of the elder generation I have known in person, hats (and gloves though less often) were de rigeur for weddings, parties, etc. I ended up, for some reason, holding the hat of my friend's English cousin for practically a whole wedding reception, as she couldn't manage her drink and cigarette AND the big hat, too.