How to sign into Windows 8 or 8.1 without a Microsoft account – make a local user

I was setting up Windows 8.1 on a machine and didn't want to use a Microsoft ID (Live ID) to sign into it. I didn't feel like linking this temporary machine to my existing Microsoft ID and just wanted a regular local login. Now, I realize that not using a Live ID would limit the things I could do and cause a lot more account popups when I visited apps like Music, Store, Video, and others, but still, I want the choice.