I read this great writeup in the FAQs

http://www.cardomain.com/memberpage/335521/3

and just had a very quick question for anyone who's done it. What do you clean the magnets with? Just wipe them off with a clean cloth, or some sort of cleaning solvent/formula?

it is my write up.. I used brake cleaner but you can use gasoline and let it dry.

I got brake cleaner, I'll use that. Thanks again for the write-up and pics.