Turn on command line colors. Just do this:
git config color.ui true
Also, and this is a huge time saver: to stage all deleted for files for GIT deletion, simply call:
git add -u
This will update all tracked files, and stage for deletion all those that were deleted. This obviates the need to manually delete each of the files. It avoids the need to explicitly call,
git rm file_name
for each file that has been deleted.
To remove all the .DS_Store files in your repository (because you forgot to add it to the .gitignore file):
find . -name .DS_Store -print0 | xargs -0 git rm --ignore-unmatch