How to save all WoW settings?

[shiin]

If you wish to save and restore all of your WoW settings (i.e. having found good settings but wanting to try something different with the option to go back to the old ones), you could simply backup your WTF folder in WoW Burning Crusade and Classic. But now with Blizzard storing a lot of the settings remotely, this is no longer an option.
Is there a new and easy way to do so, now? I know that there is some option (*) that disables remote storage, but is there a better way?

With regards to (*), does it have to be set on all PCs you are launching WoW from or just on one and the other ones learn about it via the remote storage?

bye
shiin