I am trying to set up a collaborative LaTeX project - something better than sending emails back and forth. Some sort of version control system: git or mercurial - seems popular, but it means learning a new system, and quite frankly I find git very confusing. Also it's probably overkill. And at the moment I don't really have the time to invest in learning a new system, so I'm hoping for something simpler.
I don't know that sharelatex, writelatex, authorea will work, as we use lots of LaTeX packages such as TiKZ, sagetex etc. So we really need some system - easy to use and set up - which allows us to share documents. Clearly some sort of version control system would be perfect - if there was one which was straightforward to use.
I have attempted a start with git, and I created a repository and committed it to bitbucket. But that took half a day of fiddling with ssh keys and searching for information, and I'm not sure that I want to spend half a day for every beginner's step with git. So I'm wondering if there's something simpler - in this case for just two collaborators.