In general, housekeeping departments are in charge of keeping buildings clean. They sweep, mop, dust, vacuum and clean the bathrooms. Housekeeping staff also clean windows and public areas, and they often remove trash and deposit it in the building's dumpsters. Many refill toilet paper rolls and hand soap in the bathrooms, and keep an eye out for issues such as burned-out light bulbs that need replacing, sometimes changing the bulbs or telling maintenance about the issues