Learn techniques on how to memorize stuff. Some effective techniques involve word association. Memorization techniques also help you become more creative, which is a trait of intelligent people.
Learn how to speed read. Some speed reading techniques involve practicing reading at rates you are not yet comfortable with. It's like training your brain to exceed it's abilities. Many speed reading courses can be completed within one month. Make a commitment for a few weeks to improve your reading speed and you'll be surprised at how more information you'll be able to accumulate.
Practice on your iPhone. There are several games aimed at improving your recall and overall brain performance. One such game is called "Brain Challenge" It's fun and gives you lots of feedback after each use.
Once you've enhanced your memory and reading speed/comprehension, you now need to practice these skills daily. Don't try to do too much in a short time because you'll burn out quickly. The key strategy is to be consistent. Make goals for yourself that are attainable and stick with it.