In an effort to help the Internet learn languages, I've put together a little infographic about my favorite study tool: the skinny notebook. It's an easy way to study any subject, but especially helps for languages.
I currently have skinny notebooks going for my French and Russian studies (plus Calculus and Physics), and they're where I keep important grammar rules, some basic vocabulary, and little notes about the language for later reference. They're both works in progress and I continue to update them the more I learn, but they're so helpful to refer back to if I forget something.
In the future weeks, I will be basically uploading my skinny notebooks, topic by topic, to give you all a base to start your own.