A build-up of serums, glossers, or hair polishes can make your hair look dull and greasy. Use a different shampoo than you normally use to wash away build-up.
Always have a backup hairstyle that you can use in case of emergencies. Keep some scrunchies on hand for days when a ponytail is your only salvation. Buy some hair clips and barrettes and all different shapes and styles to allow you to play with different pigtails, braids, and buns.
Plan your hairstyles for big events. Instead of waiting until right before the special event, pick out some styles now and either grow your hair into the style or select a new hairstyle that you will have time to perfect for the big event. And try out the hairstyle before the big day.
When you add lots of layers to your short cut, style possibilities are endless. When layers get progressively longer from the exterior to the top, you can roller set the interior for a soft, feminine curl.