Service, clean, or supply restrooms, Clean building floors by sweeping, mopping, scrubbing, or vacuuming, Gather and empty trash, Follow procedures for the use of chemical cleaners and power equipment to prevent damage to floors and fixtures, Clean windows, glass partitions, or mirrors, using soapy water or other cleaners, sponges, or squeegees, Fill cracks, holes, or joints with caulk, putty, plaster, or other fillers, using caulking guns or putty knives, Cover surfaces with drop cloths or masking tape and paper to protect surfaces during painting, Smooth surfaces, using sandpaper, scrapers, brushes, steel wool, or sanding machines, Read work orders or receive instructions from supervisors or homeowners to determine work requirements, Apply primers or sealers to prepare new surfaces, such as bare wood or metal, for finish coats, Read blueprints or other specifications to determine methods of installation, work procedures, or material or tool requirements, Measure and mark surfaces to lay out work, according to blueprints or drawings, using tape measures, straightedges or squares, and marking devices, Fit and fasten wallboard or drywall into position on wood or metal frameworks, using glue, nails, or screws