We know - we also thought the greatest invention of the 21st century was the gadget that peeled apples at the same time as coring them. Think of the minutes saved in preparation of healthy snacks. Minutes!
But then, we didn't fill out YouGov's poll on the greatest inventions of the 21st century, so we've only got ourselves to blame.
Having asked an 'accurate' sample of 1,736 British citizens, these are apparently the most important consumer inventions of the modern age.