Household hazardous waste collection day <https://www.cambridgema.gov/citycalendar/view.aspx?guid=e10f50c75c374bcc8e37edbc24b644c0>, 9 a.m. to 1 p.m. Saturday. Accepted items at a collection at the 65 Waverly St. <https://www.google.com/maps/place/65+Waverly+Street+Lot,+65+Waverly+St,+Cambridge,+MA+02139/@42.3570475,-71.1039901,17z/data=!3m1!4b1!4m6!3m5!1s0x89e379fc3ab37da9:0x2004de96195eb41c!8m2!3d42.357081!4d-71.10391!16s/g/1hjglkb2n?entry=ttu> parking lot, in the Area II/MIT area by Cambridgeport, include such things as batteries (vehicle and non-alkaline) <http://www.cambridgema.gov/theworks/ourservices/recyclingandtrash/hazardouswastecollection/Batteries>; car fluids including antifreeze, brake, engine degreaser and transmission; car tires (a maximum of four per household); chemicals including cleaners, glues, removers and those used for photography and in swimming pools; fluorescent light bulbs <http://www.cambridgema.gov/theworks/ourservices/recyclingandtrash/hazardouswastecollection/florescentlights>; mercury items including thermometers and thermostats; paints, both oil-based and latex; poisons such as insecticides, pesticides and weed killers; prescription medicines <http://www.cambridgema.gov/cpd/communityresources/prescriptiondrugdropbox> (which are also accepted year-round by Cambridge police); propane cylinders (20 pounds or less only); and waste fuels including antifreeze, gasoline, kerosene, Sterno and motor oil. -- Ruth Ryals raryals@gmail.com