While you were dreaming about heading home to watch The Great British Bake Off final tonight, we were considering the lasting impact of everyone's favourite baking contest. Yes, it has laughter; yes, it has tears, and yes, yes; it has delicious dough-based treats as well. But regardless of who wins tonight, the GBBO has become more than just a baking show: it's a way of life. Here are five lessons this series has taught us.