One of the essential staples of being preppy is a fresh face, with a clean simple look and no heavy makeup. I just got these makeup brushes from Eco Tools at Target. They are by far the softest brushes I have ever put to my face. They work just as well as many much more expensive makeup brushs I own but they where about half the price; The set which included a face brush, concealer brush, eye shadow brush, eyeliner brush and brow/lash groomer was about $11 and the large blush brush was $8. They are definitely my new favorite beauty tools!
Give them and try and check out they entire line of products, its definitely worth a try.