Driving through Oklahoma we were reading the usual bout of big billboards that line US roads.

Mixed in between the usual Pro Life, Jesus saves, God is great, burn your cashin our casino, Pay Day Loans and other such messages was a rather informative sign saying Did You Know that the Shopping Cart was invented in Oklahoma State?

Well now you know. So the next time you go shopping do spare a thought for the Oki’s that allowed you to stick all your goods into a metal box with wonky wheels.