At the moment, I consider any reading that I don't have to take notes on reading for pleasure. Just like having to fill out a worksheet while watching a movie in class, taking notes while reading hugely changes the tone of the task.
What I didn't realize is that the sort of notepaper I use changes the tone as well. For the past few months I had been writing on unlined paper and I just ran out and made the switch to a lined notebook last week. The lined paper has been great; I feel like my notes are more regular and organized now, and it also helps to have a notebook to flip through instead of stacks of paper covering my desk.
Funnily enough, the topic I'm taking notes on is the importance of accounting for relevant parameters when optimizing a system. In light of this, I'm trying to think of other factors affecting my studying and how I might reach optimal note quality. Using multiple colors of ink is next on my list of experiments.