I have always aspired to be one of those women who can wear a scarf so effortlessly. I have collected a few, but I never end up wearing them (unless it is the middle of winter) because I don't know how to fold it correctly.
I found these websites that take the worry out of wearing scarves. I love the Scarf Tying Guide from Texere Silk. For each type of tie, you get step by step pictorial instructions. Zia Moda also has a great guide for scarf tying.