If you're interested in customizing your Blender with your own add-on, then this new tutorialseries by Spencer Magnusson will help you get started.
Ever wanted to start making add-ons? Or just want to customize your Blender workspace or even add some features of your own?
I just put up my first tutorial/walkthrough to help you get started. It starts with the basics and mainly working from existing code. But I want to start tearing down the myth that add-ons are difficult to make, or even that you have to be an advanced coder.