How to list all filenames except those in git repositories

I wanted to see the names of all Vim source files in my ~/.vim directory. Because I use pathogen and submodules, there are a lot of .git directories under there, and I didn't want to list those. So I learned how to use the find command's 'not' operator, and it was easy:

find . \! -path "*.git*"

If you're curious, the reason I wanted to do this was to see if Vim authors typically use dashes or underscores to separate words in filenames. The answer: dashes (usually).