DIY TRICK - Your goal: Brighter Highlights‏

Don't go overboard. The smaller the chunks of hair you highlight, the more diffuse the finished look will be. Take sections of about 10 hairs spaced at least a half inch apart. A kit that makes sun-smooched streaks a cinch; L'Oreal Paris Touch-On Highlights ($12.99, drugstores), which comes with a brush that fits on your finger and glides the product through strands.