Several weeks ago I bought Neutrogena Mineral Sheers for Eyes in Shell ($7.99). I swear, I have used it almost every day since then! I LOVE the lighter color of the duo, I apply it to my lips and they instantly looks perked up, more awake, yet it's natural enough that it could potentially pass as no makeup at all. Last week I went ahead and bought another Mineral Sheers eyeshadow, in Stone (a purpleish duo) and have been very pleased with it, as well.
The colors are true to their name-- they are very sheer. But it's kinda nice that way, they just give a nice, light wash of color. And the staying power is pretty decent-- I put my makeup on at 8am and it's still there by mid-afternoon, and later.
I'm also partial to the packaging, with the slide-out cover. It's quite cute. ; )