Is is ok to mix tweeds? I picked up these brown donegal trousers for a song NWT off e-bay a while back http://www.orvis.com/p/county-donegal-tweed-pants/57ey Now I've been eyeing the JCF navy tweed sportcoat http://factory.jcrew.com/mens-clothi...5998/05998.jsp would it be ok to pair the two together w/ a white or light blue OCBD or would there just be too much texture going on? I really like the jacket & think I will pick it up regardless and pair w/ denim, wool trouser, & even cords but just wonder if tweed in two colors can be pulled off? Thanks.