[Penforhire]

Maybe consider a cloud storage service (or add-on app) that will keep selected directories synced. Before Sugarsync stopped their free service level I was doing that. Programs like Scrivener get messed up in that arrangement because of all the tiny changes it writes (every few seconds idle). If YWriter and your others apps are not so... frenetic in its saves then perhaps it would work. The thought is to push the cloud sync work over to a 3rd party app rather than your writing app.