Summer hasn't officially started, but the summer-like heat and humidity is already here. And if you're like me, you're scrambling to figure out what to wear. To give us some styling guidance, DailyCandy 's Everywhere Editor, Tiffany Davis, gave Everything She Wants her top three must-have trends for summer 2012. The good news is that you may already have these looks in your closet. Kara Laricks' color-block jacket and shorts./Saks Fifth Avenue 1) Remixed hemlines: This season is all about taking the maxi, midi, and miniskirt hemlines and then re-mixing them to your liking. For example, we’ve had a rash of New York City days involving winter weather in the morning and sweltering temps by noon. I’ve seen tons of women knotting maxi dresses at the ankle, the knee (or even higher) for a quick style tweak on the go. And whether they’re wearing a motorcycle jacket and boots or Grecian sandals, it looks effortlessly chic. 2) Tone-on-tone color-blocking: