Container shipping: the greatest business innovation of the 20th Century?

I was totally caught up in BBC4’s The Box That Changed Britain - an absolute must for business and economics students. This fantastic programme covered business costs, logistics, retail, business location, productive efficiency, human resource management, trade and globalisation. Nearly everyone is busy at the moment with revision, but if you want a pause for thought (or a resource for debate after the exams) this is it.

And I’m hard pressed to think of any other innovation that has had such a significant impact on business in the last 50 years. Ideas anyone?