I have orderd my new macbook and every single day I face up many questions about mac os x. I wonder if it useful to start this topic in order to have short answers for my short questions that they do not deserve special separate topics. So, lets start...I will type my questions by the time I think of them. How many space in hard disk the osx takes? I want to have my hard disk cleaned from every program that I do not need. What do you suggest?