Go Nude
A tried and true secret among makeup artists is to line and fill in your pout with nude lip liner before applying any pretty pigments. Creating a uniform canvas not only ensures stay-put color, it also creates a slightly bigger base for your lipstick.
Try: Revlon ColorStay Lip Liner, $5.40; ulta.com and Lip Cheat in Iconic Nude, $22; charlottetilbury.com.