The Blush Brush
It pays to invest in a blush brush, because once you find the right one, it does it all. This domed bristle brush picks up and deposits blush to define, contour, and shade your cheeks. It should be applied in a circular motion to the apples of your cheeks, which you can identify by looking into the mirror and smiling.
Clinique Blush Brush, $29; bloomingdales.com.