Reinventing the wheel – a phrase which means duplicating an existing feature from scratch – is often used in the context that it is unnecessary or inefficient.
I think that in most cases this is true, but I was hesitant to start this post by screaming to never, ever, under any circumstances whatsoever reinvent the wheel, because I think that sometimes …

When starting out with Mac development, I turned to Aaron Hillegass’s Cocoa Programming for Mac OS X, and compared to other books available on the subject I was very pleased with it. One point that he made in the opening chapter has pretty much remained true whilst I’ve been developing under OS X with the Cocoa frameworks:
Most of the time, …