One of my friends used to be quite into running barefoot. He'd take pictures of his feet while hiking in the snow, trying out new minimalist shoes or otherwise doing something interesting. It got him likes on facebook. I enjoyed the comments it inspired.

There's nothing quite like interacting with a native speaker. Even if you're kind of rusty they'll help you pick it up in a way no book can. This may not be perfect for learning the technical intricacies of grammar, but it will be quite helpful in ensuring you're actually using the language in a practical manner. http://www.mylanguageexchange.com/ is my favorite place to go for finding people. I've had success with finding Japanese practice partners there. I expect it would be just as easy to find people to practice Spanish with.

The Autobiography of Benjamin Franklin is easily one of the best first hand accounts of the founding of our nation. It also has great insight into what it takes to be an entrepreneur and influencer of men.

That does look good. This reminded me of one of my favorite ways to expand Latin vocabulary. There are a lot of pre-made flashcards for the fabulous program called "Anki". It's free, the cards are free and it works on most platforms (PC, mac, iphone). It tries to time your flashcard reviews to right when you're about to forget them. Search google for Anki in order to find it. Once you have Anki then you can easily get thousands of Latin flash cards from the decks that people share. Open the program > click File> click Download > click Shared Deck... > A new box will open up > Search for Latin> Download what looks good to you. I really like the deck called 'Latin 101 201 and 301'.

Josh Waitzkin's The Art of Learning takes apart the essence of mastery from a really accessible first person perspective. Josh was a chess prodigy during his youth. Upon reaching adulthood he transferred the knowledge about how he learned to master to chess to an entirely different skill: push hands Tai Chi. It's the best overview on what learning skills generalize that I've ever found.

Just seeing how this works.