Two Shark Tank Entrepreneurs Fill A Niche Back-To-School Need Most Retailers Ignore

Cashiers across the country are ringing up back-to-school sales, the second-biggest shopping season of the year next to the December holidays. Back-to-school and back-to-college spending is projected to top almost $76 billion this year, according to the National Retail Federation. A clothing line killing it with a tiny college niche is Frill Clothing -- a one-stop sorority shop.