Who wants to buy brand-new clothes for their kid? It's wasteful, needlessly expensive and the little whippersnappers will outgrow them before you know it. Of course, you don't want to have your offspring looking like latter-day Dickensian ragamuffins, either, which is where Kid to Kid Clothing comes in. There, you can trade in your kids' own clothing for either cash (paid on the spot) or 20 percent more value in store credit, and their gently used inventory of school, play and fancier attire is second-to-none in the Bayou City. Name brands like Ralph Lauren, Gap, Gymboree and even Hanna Andersson and Lilly Pulitzer abound on their racks and shelves, all available at a bare sliver of mall prices.