Do the maths, without actually doing the maths

I’ve been checking out a blog called Indexed for about a week now, and it has become one of the morning reads I most look forward to. Half laughing-at-facts humour and half math class, Indexed looks at home truths through the medium of graphs and charts drawn on 3X5 index cards. It’s updated at least once a day, and it’s refreshingly sharp and funny. Link