I use Vanilla pigment alone a lot, too. Also, Vanilla eyeshadow.
I don't know that I've ever used just one eyeshadow by itself other then those... No colored ones, I mean. Though, I've been in love with Cool Pink lately and I'd wear that one by itself without question. I'll have to try Woodwinked when I'm in a hurry next time
MAC makes so many wonderful neutral stand-alone shadows!
This is what I, with a total lack of political correctness, call "Idiot Eyes."
I like Subtle pigment.