The Guardian has this piece out about "10 grammar rules you can forget: how to stop worrying and write proper" by their style guide author, David Marsh (pictured).
What I'm curious about is the status of these as 'rules' in contemporary English, whether British or otherwise. I know some of these only barely and as historical curiosities.
Look at the 10 rules and think about (1) how many you know of and (2) how many you take seriously. Just curious.
HT to CG.