My 'Midnight Cami' came in a twin box, along with Jazzy Jubilant, and I absolutely love it! I have the wide European style brush, and it goes on beautifully! Introduced in the Fall 2009 Cuddle with Color collection (along with other favourites like Chinchilly and Angora Cardi), it's described as a shimmering, deep twilight blue.
Although it's nearer the dark end of the Essie blues spectrum, when the light hits it, you can really see the blue come through, as well as a subtle but gorgeous shimmer.
I like the formula - not too thick (though apply carefully to avoid seeping into the cuticle) and it levels reasonable well. I used an undercoat (and had only very minor staining issues), two coats of Midnight Cami. and a top coat of Seche Vite.
I don't have any dupes of Midnight Cami, but here it is with some of my other Essie Blues. After School Boy Blazer is more of a black/blue, Style Cartel is a shade lighter, Mezmerised and Hide & Go Chic are significantly lighter, and while Bell-Bottom Blues has the same tonal value and shimmer as Midnight Cami, BBB is much greener.
I seem to have worn a lot of blues and grey/greens lately, so while I was taking swatch photos of them, I took some 'just for fun' photos too!
My Essie polishes are currently stored in a couple of 'Really Useful Box' A4 boxes, which are the perfect depth.
And finally, this is how I keep track of my polishes. I got as close to my nail bed coloured card stock as possible, and stapled a piece of clear acetate over the top. I swatched all the polishes on the actetate and wrote the names on the cardstock underneath. If I want to audition any polishes, I can put my nail under the acetate, and get a rough idea of what the polish will look like. It's great being able to see everything in one place! I keep the polishes in the same order in their boxes, as they are on this sheet, so they are easier to find.