I came across this Wordpress blog post today. The author breaks down some fundamental guidelines for coding. To summarize: You should take as much care formating code as you would with an essay. This is good advice. I'm still a beginner when it comes to heavy lifting with Objective C, but I have already learned this lesson the hard way. It is much easier to find mistakes when you have the proper punctuation. Just imagine writing an essay without carriage returns, indentation, page breaks or punctuation. It would be pretty tough finding where you forgot to put that closing quote.