Now that the weather's finally heated up, it's time to brighten up! Add some summertime oomph to your hairdo with a few sunny, golden-bronze streaks. Whether you have a tropical vacation planned or not, your sun-streaked strands will have everyone thinking you've just stepped off the beach. To pick the most natural shade, go for a hue just a few shades lighter than your natural color. Here's the thing, though. If you have a relaxer, lightening your hair can be pretty damaging. Instead, ask your stylist to weave some sunny extensions through your 'do, or get a temporary rinse in a golden brown shade (try Sebastian Laminates Cellophane, $37.99)--this will give your hair an allover brighter tone.