Always on game days, try to wear one at least one other day a week. As a teacher, less and less of us are wearing ties at all, but I do think its important to look good. And on game days, my team and I all wear ties. I do take a casual day (Jeans and a polo/sweater) on Thursdays, b/c Fridays are almost always game day... but today I'm wearing PJ's b/c its a snow day - wooh!