i have asked this question before, but it's a great question and it's been a while, so i'll ask it again:
what is YOUR 'uniform'?
do you have a 'uniform' at all? or are you, in some sense, a 'different' person every day, playing with vastly different looks and pieces, so much so that we, as a viewer, could not pigeonhole you in any way?
what pieces make up your personal 'uniform', if you have one?
why do you have that particular 'uniform'? what purpose in your wardrobe and life do those pieces serve (practical or otherwise), and, if you can articulate it, what do you feel those pieces or the total look represent or symbolize to those with whom you interact, or to those that see you?
by the way: i am not necessarily referring to what you wear to work (or are forced to wear to work as the case may be)...rather, what do you 'typically', generally wear on a given day (in case that somehow wasn't clear!)?
(an old wardrobe_remix photo of mine from 2006...it is a pretty typical representation of my own daily 'uniform', even 3 years later. all my everyday loves and staples are represented: a denim jacket, a warm colorful scarf, some variation on a sweatshirt, an interesting pair of shoes/boots, and my favorite thing to wear, hands down, a pair of jeans.)