Prior to being full time I was at the lab when I was coming from or on my way to the agency. And apparently, I was always dressed up (=not wearing t-shirt and jeans).
I dressed up on Day One. We had someone from a corporation visiting. It was my first day. I kind of like "dressing up" - especially when it's not required. Unbeknownst to me, there were bets out on how long that would last.
On day two, I arrived in a t-shirt, jeans, and sneakers. A retro fitted t-shirt, designer jeans and sneakers, mind you. What happens when I wear high heels and a pencil skirt tomorrow? How are they defining "'last"?