I need to do this about once a week.
git update-index --assume-unchanged path/to/file.txt git commit -a -m "MOBILE-1234: changed a bunch of files but excluded that one I'm saving for later." git update-index --no-assume-unchanged path/to/file.txt
If you change 10 files but you only want to commit 9 this will do the trick.
TODO: Complete this git tutorial that blew up on HN a while back. http://pcottle.github.com/learnGitBranching/