Using grep with Subversion

I use grep alot, but it false positives when searching in a Subversion working copy. So I’m using the -r flag to recursively search for the phrase quick brown fox:

$ grep -r 'quick brown fox' *
app/controllers/users_controller.php: quick brown fox
app/controllers/.svn/text-base/users_controller.php.svn-base: quick brown fox

I don’t really want a hit on anything in .svn, so exclude it like --exclude-dir=.svn.