I had a good friend who worked in the banking industry till he retired. Total suit and tie guy, but the ties...oooh the ties. He hated them, and he so loved "casual Fridays" but because of being in management he couldn't enjoy, till he found his Hawaii ties. From then forward (mid 90's), everyday he wore a very professional suit and...Hawaii tie. Loud, colorful, almost to the obnoxious side, but those dang ties got him more business and opened more doors that any business card ever did.