diff --git a/.gitignore b/.gitignore
index c1169673..885c28b7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,3 +20,5 @@ sites/
 .*.sw[op]
 # prevent `echo foo 2>1` typo errors by making this file read-only
 1
+# allow users to keep some junk files around
+*.wip