Ask HN: What are you planning to learn in 2013?

A new year is about to begin. What are you going to learn in this new year to improve yourself? Here are few things I would like to learn in 2013 : 1. UI/UX Design : I'm a hacker who can make decent looking designs using css frameworks. I know I have a sense of design and I would like to take it to next level and become an expert designer. 2. A functional language : I don't know a single functional language. I would like to learn one. May be Haskell. 3. The art of selling : I am building a SAAS app for a niche and hopefully I will work hard this year to learn how to sell it to customers.