We used to have jean days. Then they made us casual all of the time. For awhile people wore jeans all the time, but slowly i've noticed many have gone back to business casual all on their own. So, it's kinda cool to have the choice just to pull on a pair of jeans (they have to be decent, no holes and stuff) and a sweatshirt or sweater if the weather is crap or you're just not feeling it. Wearing casual all the time, hasn't made us less professional, which was always the big fear.