Put down the flatiron. Giving your hair a break from heated tools is healthy for your locks and looks good, especially if your hair is as wavy as Sarah Jessica Parker's.

A half-up ponytail flatters any face shape and looks instantly polished. Take a note from Lopez and twist hair on a side part for easy sophistication.

If your hair is long enough, a chic but simple option is the topknot. Place it high on the top of the crown for extra drama, à la Katie Holmes.

Thanks to shiny strands and a pretty side part, Julie Bowen's low-slung ponytail is a feminine, brunch-ready take on the gym staple.

A low bun is ballerina-chic (Black Swan, anyone?), but Charlize Theron keeps the look from being too severe with a few loose, face-framing strands.

If you're growing out bangs (or even if you're not), Rachel McAdams demonstrates a great way to work the awkward stage to your advantage. Just pin them to the crown of your head and you're set.

Height at the crown adds instant elegance to Kate Winslet's simple ponytail. Plus, it works for brunch as well as it does for a romantic dinner.

If your hair has a wave or curl to it, let it air-dry before twisting it into a textured bun like Jessica Alba's. It's polished without looking too "done."

If you don't have much time on your hands, a miniature braid is an easy way to dress up a simple hairstyle. It'll channel boho chic or Greek goddess (see: Diane Kruger).