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Who She Is: The mastermind behind the style blog, which covers everything from art and fashion to travel and food, Gina Pell is one of the savviest Internet shoppers around. Her mantra: Streamline and simplify. “We’re constantly being bombarded with information,” Pell says. “I wanted to find a way to strip it down to the very best.”

Her Big Idea: Trawling the world of online sales—from retailers such as Net-a-Porter, Neiman Marcus, and Vacationist (T+L’s partner site)—Pell’s SalesCast app (free; iPhone/iPod Touch, iPad) delivers its obsessively curated picks of sales right to your smart phone, from Jimmy Choo snakeskin stilettos at more than 60 percent off to a last-minute jaunt at the Grand Hotel Majestic, on Italy’s Lake Maggiore, that doesn’t break the bank.