Pretty self-explanatory; I'm thinking of @AndrewStacey's answer, in particular the part about working with collaborators who do not use VCS. I'm hoping for a more detailed explanation / step-by-step workflow for how, e.g., to use GIT (or SVN) to make it "seem" to me that a potential collaborator who is not tech-savvy (or TeX-savvy!) is using VCS without the collaborator having to be aware of it.
The collaborator and I will share files over Dropbox, but I'm planning on treating a local non-shared, version-controlled folder as the "real" project and just using the Dropbox for fast exchange with the collaborator. Any words of advice / approaches to doing this would be much appreciated.