I have found rug shopping incredibly difficult. There are so many different weaves and construction types, on top of material differences. Some use viscose, polyester, or even wool. Can someone help point me to some good resources (or an expert) on how to go about rug shopping? We're looking for an 8x10' area rug and are leaning towards a tufted wool rug... but then I don't know if we need a rug mat (it's so thick already)! We also have cats that we're hoping avoid using the rug as a scratcher...