I was changing the margins in an existing document. At the end of the change my document had blue lines running the length of every page and looked like a spiral notebook paper What's with that? I am unaware of doing anything more than change the margin size. How do I get rid of them?
The location in the menus changes from version to version, and the keyboard shortcut differs from platform to platform, but I'm guessing that you should look at View -> Extras -> Hide Baseline Grid.
Excellent. Thank you, that did it.