"Tidying Up" is a popular organization method developed by Marie Kondo, a Japanese tidying expert. The approach emphasizes decluttering and organizing belongings by keeping only those items that "spark joy." Kondo encourages individuals to tackle their possessions by category rather than by location, starting with clothes, then moving to books, papers, and sentimental items. The process involves a systematic approach to sorting through items, folding clothes in a specific way, and finding designated places for everything. Kondo's philosophy promotes mindfulness and gratitude towards belongings, aiming to create a more peaceful and harmonious living environment.