I can't understand why they haven't tried to fix their CLI syntax. Besides having to remember when to do origin <space> branch and origin/branch, there is also how do you set the upstream branch, there's a couple of ways there.

And then creating a branch and switching to it. Is it 'git branch -c foobar' or 'git checkout -c foobar'. Was it -c for create? why not allow it on both? And its so easy to fix these things.