We're certainly not suggesting that you don't wear underwear to work. Just make sure that "under" is the operative word. While there's no arguing with the fact that there's something flirty about a little bit of lace or a bra strap peeking out (there's a reason Blanche was the sexiest Golden Girl), it doesn't quite convey the most professional image. The same goes for panty lines. Thongs are always an option for snug skirts and dresses, but if your underwear is pinching in the wrong places, make sure you're buying it in the right size.