For the majority of articles I write, I begin with a fresh install of WordPress. It’s the best way to ensure control when you have people following along and doing exactly what you do.
It would be very tedious if for each article I wrote, I had to create an entirely new WordPress instance. That would require a fresh database, the most recent version of WordPress, a new user, etc.
The answer, of course, is WordPress Multisite. (Btw, check out our Multisite guides here.)

![WordPress for Mac: How to Install Locally with MAMP [Tutorial] WordPress for Mac: How to Install Locally with MAMP [Tutorial]](http://wpmu.org/wp-content/uploads/2012/07/wordpress-mac-install-mamp.png)