There are several very effective methods and products that we recommend for cleaning up when necessary.  

Mr. Clean Magic Eraser products work wonderfully for simple touch ups or the wear of dirty hands or feet.

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Home style pressure cleaners work wonders on our surfaces and cleans everything up in a snap.

Scrub the surface with a scrub brush and hot, soapy water. This will remove the mold from the surface.  Disinfect the surface with the bleach-and-water mixture. Combine one-quarter cup of chlorine bleach into a bucket with one gallon of hot water.

Using a light sandpaper on the edges (NOT on the flat surfaces) works great too.