Use and maintain assigned power equipment and hand tools, including buffers, auto scrubbers, extractors, high-pressure washers, high-speed buffers and vacuums, brooms, mops, and squeegees, for the cleaning and general maintenance of floors, walls, carpets, furniture, etc. Lock and unlock assigned buildings; secure the building when facilities are not in use, checking for unlocked doors and windows, report any unauthorized occupants, and turn off lights.