That takes me back. I can remember my old blue Post Office savings account book. Every Saturday, when I got my pocket money, would go to the shop, buy one bar of Cadbury's mint crisp. Then munching on that would pay the rest into my savings account. Which the machine would stamp.
On a bad week I would also buy 10 black Jacks and 10 fruit salads( chewy yummy sweets) You could get 4 of either for one old penny, about half a cent.
so 20 would be about 2.5 cents !!!!
When I had enough money saved I would go to the joke shop and buy itching powder, pretend dog poo all the normal stuff. Happy days.Or if I had really saved I could go to the book shop and buy a new Enid Blyton book, and get lost in the famous five's adventures.
Life really was so easy then. I never remember feeling deprived either.