I just started using cloud based sync software, i.e. dropbox.
Visual Studio allows me to specify where my current settings are saved and I'm able to save them to my dropbox location. This allows me to sync up my home and work environments on the fly.
At the moment I have to manually push and pull my ReSharper settings. It would be really great to be able to specify where the settings were persisted.
When the new live sync comes out this won't be as much an issue for me, live sync allows you to specify what folders to share while dropbox provides and requires the use of a specific root folder. Still dropbox has several advantages over competitors and the ability to specify where settings are stored is still a plus. (Just default to the current location.)