I've been keeping track of the articles, tools, and resources that I've found helpful as I learn about design. 2013 will be the year where I take this to the next level. Suggestions welcome (in the comments).
I definitely have made the mistake in the past of thinking of design as something you slap on later, and something that is entirely visual. The experience of *using* things is what I want to learn about... and this gave me a good swift kick.