For some Goodwill and thrift stores Opens a New Window. across the country the “Marie-Kondo effect,” or the uptick in donations seen after the launch of the Netflix Opens a New Window. reality series on decluttering, has become somewhat problematic. Since the show launched, many secondhand shops are receiving mass quantities of unsellable stuff — from moth-infested clothing to broken appliances and toys. In “Tidying Up With Marie Kondo,” which made its Netflix debut in January, Japanese home organization guru Kondo teaches viewers how to rid their lives of clutter by parting with things that, as she puts it, no longer “spark joy.” A number of Goodwill markets saw a year-over-year spike in donations that they attribute directly to the show, says Lauren Lawson-Zilai, senior director of public relations at Goodwill Industries International. “The Houston market was up 22 percent; donations in Roanoke, Virginia, rose 20 percent, Washington, D.C. was up 30 percent; and Grand Rapids, Michigan went up nearly 20 percent,” Lawson-Zilai says. But many Goodwill and second-hand shops say the increased volume has brought with it more headaches and extra work, as people are donating things that nobody would want. “If someone gives us something that we can’t use, like a broken refrigerator that we have to take to the landfill, or a stroller that’s been recalled, or shredded or ripped clothing, we do our best to educate them about the transaction, but they can get testy,” says Salvation Army’s national spokesperson Lt. Col. Ward Matthews. A spokesperson for Netflix did not immediately respond to FOX Business’ request for comment. Getting ready to do your own spring cleaning? Should you donate, sell or toss it? Click here for some expert advice on how to know what could be another man’s treasure, vs. what belongs on the curb.