definitley would have to go with chapstick... I hardly wear make-up anyway ('cept to church and other "dress-up" places).... but I think my lips would fall off without my chapstick... it goes with me everywhere...
I can't live without Clean N' Clear shine control moisturizer. A lot of times all I do is throw on some mascra, and put on moisturizer and go out the door.
I really can't think of just 'one'... But let me narrow it down to my Proactiv wash and moisturizer for my face, and for my hair it's Retexxtur Curl Enhancing Styler by Nexxus
It would have to be my Lancome "Hypnose" mascara.. I highly recommend it!! though it costed me 30 usd last time too much for me to pay! but its worth it! cant live without it.
I LOVE Bare Minerals foundation. It's like a powder substance and I don't feel nor look like I'm wearing any makeup. People used to comment when I wore foundation because my skin is so oily, but Bare Minerals is good. I bought it off QVC.