Cash For Laptops wants you to clean out your closet for cash.Since the recession sent people scrambling to replace lost income, the Sparks recycling company has seen a spike in business. January and February brought a 35 percent increase and March another 20 percent, says General Manager Becky Wright.To handle the onslaught, it's increased staff at the Sparks facility to a dozen, up from five last October. Wright says, "I'm interviewing constantly."The company pays around $175 for the average laptop, but up to $700 for some better models. Sellers type product specs into an online form and get back a …