Our favorite place to find dressy dresses at great prices is Ross. Both of our LBDs came from there, and we've found swanky dresses in other colors there as well.
Hannah's dress is actually a dark navy, but still has all the style and wear anywhere advantages of a black dress.
I think the cut and ruffle design give it a 1920's vibe.
Hannah is wearing:
Shoes: Steve Madden
I also love ruffles and fell hard for the neckline on this dress.
I love a simple dress that has one really special detail to keep it from feeling too plain.
Shoes: Sam & Libby (also from Ross)
Other great sources for classy dresses: Mod Cloth (they have amazing sales) and Target (some really nice stuff online that's not in stores).
What's your secret shopping place?