How to clean your Vibram Fivefingers. 

This is my video on how I defunk my VFF's. I have done this about 40 or so times and have not had any issues, except by trying it on the Leather Trek LS.
DO NOT TRY THIS ON LEATHER VFFs......unless you want to remove all the oils from them.
So hope this helps keep your feet from smelling like yuk.....be safe.