Well, I work in a law firm, so we're kind of dressed up. Almost every outfit I wear to work is in 3 pieces, i.e. a pantsuit or slacks and a sweater set, so I can deal with the vagaries of the changing office temperatures. I rarely wear skirts because I also hate pantyhose.
Comfortable shoes are really important to me. I keep several pairs of uncomfortable shoes under my desk to wear when clients come in, but most of the time I wear a simple black wedge; closed in the winter, open back in the spring, and open back and toe in the summer (along with the inevitable toe nail polish, which I can never quite find the time to apply x( )
On Fridays we dress down, but no jeans or sneakers are ever acceptable here.
I like make-up. I think it's the frustrated artist in me. I wear foundation, 3 shades of eyeshadow, eyeliner, mascara, blush, lipliner, lipstick and gloss every day. I like the colors and the textures.