I dig what you guys are saying about clothing and perceptions.
I'm going up for a higher position at the library, so I'm dressing a bit more professional lately.  The job would be supervisorial, with meetings to attend, so I went and bought myself a women's suit of sorts.  It's in a young style, so I'm not going fuddyduddy or anything.  I'm slowly pushing my less mature fashions towards the weekend side of the closet.  I've found that what I wear greatly affects my attitude, and I'm sure, how others perceive me.
A few years back I finally realized that I dressed poorly...that my clothes were baggy and ugly and unflattering....and the subsequent wardrobe change turned around my entire self-image.  Now I feel comfortable in my skin, as well as my clothes.
I fully dig the power of wardrobe. 
On the other hand, €, I'd be a nudist, if I wasn't so damn cold all the time.  Seriously!