Using Soap Flakes to clean a guitar

At the link below, there is a nice explanation of how to clean a guitar using soapy water. Some on the forum suggest using Soap Flakes.

This must be done carefully.

There is a clear and detailed set of "rules" on how to safely clean a guitar, at the Sound on Sound forum...

http://www.soundonsound.com/forum/showflat.php?Board=GTR&Number...