I don't wish to sound oppositional (love that word!), but I would be careful using the shelf-liner recommended by lonewolfny42. I have had some experience with that ype of product, perhaps a different manufacturer, or perhaps a slightly different composition of the material, but I found that it can leave marks which are not easy to remove.
I think that this may be similar to, or the same as, the product Michael Fremer warned against using as a turntable mat.
Best Regards.