I don't think I've ever used `IO.puts` for anything. As the article notes, `IO.inspect` is far superior. Also, the Erlang observer is super neat. One really co

I don't think I've ever used `IO.puts` for anything. As the article notes, `IO.inspect` is far superior. Also, the Erlang observer is super neat. One really cool thing you can do with it is attach it to a remote machine, which comes in real handy.