Any suggestions or tricks about cleaning silicone baking mats? I have several Kitchenaid baking mats that produce the best cookies, pastries, etc., but are causing me cleaning concerns. I don't own a dishwasher so I soak them in very hot, very soapy water for awhile, then scrub them with a sponge/scour pad, then hang to dry. When they are dry (and feel clean), I roll them up and put them away. However, every time I take them out to use them again, they feel greasy!! I don't know if this is just a "side effect" of silicone or if there is some other way I should be hand-washing the mats. Any help is truly appreciated!!