Olivia over at Into The Palette has written a step by step guide to an interpretation of a Joan Holloway look using my face to demonstrate it. I love Olivia's guides, because she illustrates exactly what she means for each step and makes them goof proof. Joan is also my favourite Mad Men character (as well as the sass, for those dresses and that hair!)
You can find the post here:
I'm planning to give it a go myself this weekend.