This isn't going to be my last post with Christmas in the title. I warn you.
But this is just a short little entry, without reference to my childhood about a good place to get cheap batteries.
7DAYSHOP is where I get all my batteries, and have done for years. Its based in Guernsey so lots of things are VAT free. I buy a box of 40 Duracell AA batteries for just over £13. Don't even get me started on the price difference on CR2032s which are those 'coin' lithium batteries you need for so many things.
Postage is generally free, so when you next need batteries, just be a tiny bit more organised and get them from there.