How can you be perfect (or at least good) at something if you don’t practice? I think, not at all. Especially when it comes to software development beeing perfect without practice is hardly possible.
So, have some practice! To get some help with that, you should visit Chris Forsythe’s website.

Technorati Tags: cocoa, mac os x, objective-c, programming

Chris is an Adium developer and provides a great service called Weekly Cocoa App Challenge:
Every week Chris posts a small Cocoa application which you have to (try to) re-develop.
After a week Chris pubishes the source code to this application so you can compare your code with the one from the expert.
Practice makes perfect, with Chris’ help even easier.