Just learned something a little interesting.
Turns out that screen options are stored by account — probably in cookies. I’ll determine that later. What I do know for sure right now is that when I changed screen options on the dashboard for one blog, those changes were also applied for my other blog.
I was hoping to turn “author” off on this blog since at the moment I am the sole author. But, I wanted to leave “author” showing in Kitchen Counter Gardening because we have several authors and it would be worth the desktop real estate to see who wrote what.