If you're ready to take the plunge—or have already taken it but are having trouble staying afloat—we assembled some essential survival tips. ... Joy D. Cho didn't fancy herself a born entrepreneur. But after four years designing graphics and home accessories in Manhattan, the Syracuse University grad hung out a shingle as a freelance branding and packaging designer for the fashion and food industries. ... Cho's message to fellow freelancers: Don't undervalue your services. "I'm realizing now not to say yes to everything," she says. "In the beginning I said 'Yes' to jobs that did not excite or fit me."