Working together on a project can really speed up the drafting process.

To avoid complications, Revit has some built in safety-features, like forbidding other users to edit objects that you are working on. To keep track of this, I (and everyone else here) uses the Worksharing Monitor from Autodesk:

You can download it as part of your subscription directly from Autodesk.

It'll tell you whenever someone is saving to central, needs to edit something borrowed by you, and a lot of other things, by popping up a small info-screen on the bottom right. Informative and unobstrusive.