As a kid I always like cleaning my golf clubs after a round. Helped to feel a connection with the club. Now I do the same with my discs...take some time and clean them up good. Nothing worse than a dusty driver when you need a perfect shot off the tee.
I clean my off every couple of weeks but not every time I play a round. to me it is not necessary because I am good about cleaning them with a towel after each shot. definitely nice to have a clean disc to throw when you step up to the tee, especially when it is cold and wet outside.