Notes. Condensed notes highlighting the important information from various sources. It takes some time to analyze the information. There may be times I need to refine the notes, but I try my best to make the basics comprehensible to understand. Then the rest of the time, I try to apply that infomation, recall it best I can before having to look it up, and I just practice it on Renshuu for a bit. Sometimes I'd practice elsewhere for a different approach, yet it's really basically the same deal. So, over time, I would repeat that cycle when I get around to learning new things.