.DS_Store sneaking in.

[sfsheath]

We probably want to avoid 'git add .' or the like when adding files. Better to add by individual file or extension. And to get .gitignore coordinated.

[paregorios]

I find this a useful place to grab .gitignore files:

https://github.com/github/gitignore

In particular:

• https://github.com/github/gitignore/blob/master/Global/macOS.gitignore
• https://github.com/github/gitignore/blob/master/Global/Windows.gitignore
• https://github.com/github/gitignore/blob/master/Python.gitignore

You'll find directives for other language/editor environments in the top-level directory, and other OSs, development frameworks, and a few more editors in the "Global" subdirectory. I just concatenate what I want into a single file, then add a couple of things at the end like ".bak" and ".xpr".