The stuff simply accumulated quietly, year after year, until whole rooms quietly changed jobs. And now, researchers have put a precise dollar value on exactly what that slow creep is costing the households it has swallowed. Most people think of clutter as a tidying problem, not a money problemThat framing is almost certainly wrong. And the math, once you do it room by room, starts to feel uncomfortable in a very specific way. The rooms that quietly stopped being roomsOver half of Americans, 54 percent, sacrifice between 100 and 500 square feet of their home to possessions they rarely use.