I always love it when I find a product that is a reasonable price AND really works! I really have found that in Magic Lumi by L'oreal Paris. Modeled after the more expensive version, Touche Eclat by YSL, Magic Lumi is a great highlighter and concealer. Brightens, erases and contours all in one easy clicking pen. And the price is right at about $11 as compared to $40 for the YSL.
Simple to use! Beautiful finish!