When people ask me about beefing up their work wardrobe and how to do so, I always begin the conversation with a discussion about staples.  I'm a firm believer that your closet should be 80/20: mostly classic, investment pieces with some fun seasonal pieces that you don't feel guilty about getting rid of after the trend has passed.  Much like the 'Field of Dreams', if you build it, they will come.  Or more relevantly speaking, build a good closet foundation and the rest will follow.  Also, a rule of thumb I use is looking at my higher price point purchases with a dual lens: will I be able to wear it outside of work? 

The 80%:

LBD
that can take you from a day at the office to happy hour drinks

sleek pencil skirt
who doesn't like a good No. 2

classic blazer
I love either a tweed or a boyfriend blazer

blouse with character
who can say no to a good polka dot?!?!

comfy cardi
adore JCrew's guaze and featherweight variety

pair of cropped pants
Gap's are my miracle pre, during, and post pregnancy pants...seriously, same pair. Go stock up!

pair of nude heels
they are much more flattering than black

classic bag
if you are going to invest in the Speedy, go with the 30.  Perfect size!

skinny belt
leopard adds the right amount of pop

statement necklace
owned in two colors...and contemplating the all crystal version. help.

What are your closet staples, work or otherwise?