- Map the same drive letter so that the central file is on the same path as it would be at the office.
- Copy the working file to your home computer (often this is best done via sneaker network - take the copy home on CDRW or thumb drive)
- Open the file and work, you can now work NOT AT RISK, because revit will see the central file and be able to check items out. I have a broadband connection and this chatter between revit and the central file doesn't seam to be much of a load to the connection.
- Save to central when needed - if you do it over the broadband connection, it can get pretty slow... 30 min or more, sometimes... so maybe it's time to copy the file back to the office and STC from there.
I find the remote desktop a little laggy, so i combine the two methods, and copy the working file to my home computer, work on it there, save locally, copy it back, VNC into my work computer, open it and STC, and repeat. In my experience copying the file over and back is faster than trying to save to central over the VPN connection, especially if you can leave it to the end of the day.