Marie Kondo brings her world-renowned tidying expertise to Katie's own closet, where—let’s just say—not everything is “sparking joy.” They discuss Marie’s early (and sometimes overzealous) forays into organizing and why the "KonMari Method" for cleaning up has turned into a global phenomenon. Plus, Marie explains how her young daughters have changed her approach to tidying and divulges the unnecessary object in her home that she refuses to give away. For bonus footage of Marie helping Katie confront her packed closet, head to Architectural Digest: bit.ly/KondoCouric