my 2 cents:
personally, i like to spend a bit more initially and have a few good items that i feel good wearing and know look good every time- like makeup for dummies. it's best to have reliable staples you can use every day and just tweak if you need to.
blush: my favorite is Nars Outlaw. you only need a bit, and it makes you look glowy (and like the picture of health on pale, pasty days)
eyeshadow: Stila Golightly. My favorite. it's a combination of slate, brown and olive green with subtle shimmer. looks amazing on green and blue eyes. the nice part is a light dusting'll do ya for every day, or you can really pack it on and it looks amazing.
lipstick, meh. i'll wear whatever. but i find outlaw and golightly to be idiot-proof every time.