One black dress with a Charlestone straight shape (From Kookaï, by the way).
And then you figure how to dress up or down:
1) Like a 12 year old kiddy from the 1960′s era. With shirt layered underneath.
2) Like a dancing disco-babe, prickly-sequins on top, soft and fluffy on the bottom.
3) Like an elegant Mâdame. LBB & Red lippy & diamonds (haha). Although I would hardly recommend this one as I find it too boring.