[nickbrickmaster]

Using version control is the way to go. You don't need to use GitHub specifically, but Git can be used offline or with some other server such as BitBucket. SVN is also an option.

Seriously, version control is what is used in the professional world. Git is one of the most widespread VCSs out there. Our team uses it. It's very convenient to be able to go home and code with the most up to date version. It becomes even simpler to use if you have a UI for it (EGit for Eclipse). It's worth spending a day or two to go over how it works.