Just in case anyone has missed this offer, a family pass is available to down load on the Trust web site valid until 20th October I believe . A few exceptions but still tons of places taking part! I typed " free National Trust 2023" and it was easy to follow.
I sometimes spot offers then forget to take them up, so this is just a little reminder! 
My 600lb Life-Where Do They Get All Their Money From?
Electricity- I thought that I had an innovative idea. Someone got there first
