Last month I decided to start keeping track of the things learned along the way. This list at the moment seems kinda short, let's say that's because I didn't start keeping track of the stuff from the beginning of the month.
Testing Objective-C classes equality: http://stackoverflow.com/questions/10944460/testing-class-equality-in-objective-c
_cmd returns the method name within a method: http://stackoverflow.com/questions/2770307/nslog-the-method-name-with-objective-c-in-iphone
You can use a Pod locally: https://github.com/CocoaPods/CocoaPods/wiki/Working-on-a-pod
Systems and Tools
How to stop autocorrect in zsh: http://yountlabs.com/blog/2010/11/06/disable-autocorrect-in-zsh/
Where does the Logarithm name come from: "Napier first called L an "artificial number", but later introduced the word "logarithm" to mean a number that indicates a ratio: λόγος (logos) meaning proportion, and ἀριθμός (arithmos) meaning number." http://en.wikipedia.org/wiki/Logarithm