What are /r/OptimizingLife's favorite Products & Services?

From 3.5 billion Reddit comments

Sounds pretty similar to what I did: http://austingwalters.com/maximizing-learning-how-audiobooks-can-change-your-life/

Except with audiobooks. However, I would argue 500 wpm (http://www.spritzinc.com/faq/) would be a bit much for the average user. I know it's possible to read that fast, but often comprehension/pleasure diminishes, so most people wont use it anywhere near that speed.

Further, understanding is not the same as enjoying, I took several speed reading courses and basically I can read super fast (usually around 430 wpm), but you only search for key terms and often will scan 2 to 3 lines at a time. if this app offered 2 - 3 lines at a time, maybe it would be good for speed reading, but I still question it because it would diminish your ability to skip unneeded sections.