One thing that Mike Berger brought up in the last assignment when we were studying mobile applications that encourage behavior modification was the idea of streaks. I remember with CodeAcademy (which has plenty of problems, but does a few things right) how it encouraged me to not break my streak. I’m just learning git and how to use Github, I noticed that it has the same feature, and incorporates a simple but clear visualization of your work. While Github isn’t directed towards behavior modification and this may incentivize certain users to push too many small commits, it’s also a compelling way to track yourself and keep at a project.