I've been trying to find a UK source of Gorgomyte but no luck as yet...
"The GHS String Corporation is now a licensed distributor of Gorgomyte.
Now it's even easier to get hold of "The World's Best Fret & Fingerboard
Conditioning Cloth"
Just visit any fine musical instrument retailer and ask for it by name, Gorgomyte
(cough) Feline... Hint, hint :P