It’s all cisterns go for the modern home

As one of three occupants, all well over pensionable age, of a house with four toilets, I can tell Kevin McCloud that when he gets to our age, he won’t consider always being able to get to an unoccupied loo a bugbear (Report, 3 September).Mike LowcockSandbach, Cheshire
“Why do people judge the status of a house by how many toilets you can offer your guests?” asks Kevin McCloud. Surely the question should be: “Just what are they planning to feed their guests?”Barbara KnappPudsey, West Yorkshire
Aristotle’s book lice were presumably eating the glue that held sheets of papyrus to make up a roll – not exactly the “glue that held the pages together” (Specieswatch, 4 September). The codex book wasn’t invented until much later.Roderick WhiteLondon
I’m happy to say that I have seen the heart symbol used for the word “love” (Letters, 4 September) on 14 February every year since 1951 – 26 years before it was “invented” for the I ❤ NY campaign).Liz TaylorWest Bridgford, Nottinghamshire
Now that Ofsted is no longer grading schools with a single word (Editorial, 2 September), when can we expect schools to stop grading young people with single letters?J-P MartinsSutton Abinger, Surrey
Guinness (Letters, 30 August) was also prescribed for patients with tuberculosis. Unfortunately, during my eight months in a TB sanitorium in 1966, this was no longer so.Roger SawyerHuddersfield, West Yorkshire