I have to wear clean cut pants, which are usually black or navy blue. We have these light blue denim like shirts, with our names stitched on. I don't wear a tie, it's not something formal, at least not yet. I've got these awful black shoes, they're so ugly, and so unconfortable.
When i'm at home, or hangin' with friends, i'll rock the baggie "crotch to da' knees" pants (not really, but they're a bit looser than what i wear at work), usually a black or grey t-shirt (nothing too flashy for me, i think i have only one shirt that isn't grey, black or blue) and my good old Etnies shoes.