No DD days, but often dress up days : halloween, tickled pink, Christmas, Cominc Relief and any other day they can get a quid out of us for charity. It becomes very boring, although some people find it hilarious to walk in with pyjamas on. Hahaha, Ping, there goes another rib.
Never, because we had to wear uniform. But POET's Day, we certainly had; in fact, if we all finished early that was not just Friday:) We'd send the junior clerk out with an order for the local wine merchant. Encouragingly, all big solicitors around here have POET's Day if they are senior enough. Just as well. None of them would be sober by 3pm if they stayed in the office!