One of the things I've been trying to accumulate in my extensive makeup collection is foundation and concealer that will match everyone's skintone. Obviously this won't be accomplished in 1 product, but here's a palette that will.
The Bobbi Brown BBU Palette. It features: 9 shades of Corrector for extra dark circles, 12 shades of Creamy Concealer for average undereye darkness, and 17 shades of Foundation Stick to give skin a smooth, even finish. Corrector (.04oz./1.2g each); Concealer (.03 oz./ 1.1g each); Foundation Stick (.05 oz./ 1.7g each).
I'm trying to figure out how much product each little well contains, because this palette is not cheap. In fact, it's a whopping $250. If you're serious about becoming a makeup artist, this is a great tool. Not content to just focus on foundation, Bobbi Brown also has a palette of lip colors.
I love this lip palette too! It's $200 though. Man, I wish these weren't Limited Edition, otherwise I'd promise myself I'd buy them by saving $1 a day or something. For those of you like me, who won't be spending $450 on makeup, Bobbi does have the option of building your own customized palette. It'd be a great way to create a personalized kit of all the essentials - foundation, blush, eyes, and lips.
You can fill it with six products, so create a palette of eye colors, lipsticks, blushes, foundations...you name it! Start with this empty palette for just $10, then add your favorite shades. 
Foundation Stick Compacts are limited edition, so if you want these in the palette, you'd better hurry. I'd buy a couple, one for the pale winter skin and one for after that gorgeous summer glow.
Shimmer Blush or Regular Blush. $22 each.
Shimmer Bluish: 7 Shades
19 Blush Shades to choose from
Lip Quads: Available in Coral, Pink, or Rose groups.$20 each
If you don't want 4 shades, you can add individual Lipstick or Lipgloss compacts.
Lipstick: 3 shades, $20 each
Lipgloss: 6 shades, $20 each
Eyeshadows: Sparkle or Regular, $24 each. Shades may change seasonally.
All images from bobbibrown.com
