It's not uncommon for people to own, or work on more than one computer. This could be a desktop of some kind, at home or in the office and laptop for working on the train or away from home. Having access to multiple machines offers greater flexibility but, on the other hand, can cause confusion. It's important to make sure all necessary documents are updated across these machines so that any saves made to modified documents can be easily identified.  

GoodSync 7.5.5 is a handy tool that enables anyone using multiple computers to keep documents up-to-date. By using this synchronisation tool it's possible to work on a document when you're on the train, arrive at work, turn on your office machine and continue working on the document you were editing on the train.

GoodSync 7.5.5 link.     

12 Nov 2008