September 1 in Boston is more than just a date; it's a phenomenon. Moving trucks clog the streets, discarded furniture lines the sidewalks, and traffic snarls become the norm. The day even has its own local slang, such as “Storrowing” (the unfortunate incident of trucks hitting low-clearance bridges) and “Allston Christmas” (the abundance of discarded furniture and household items). Despite its notoriety, this annual tradition has received surprisingly little attention from housing researchers or economists.