Cornell Cooperative Extension’s Seed Swap, 10:30 a.m. to 2 p.m., Apalachin Library; 10 a.m. to 2 p.m., Candor Free Library; 10 a.m. to 2 p.m., Van Etten Town Hall; 1-4 p.m., Coburn Library in Owego; 10 a.m. to noon, Waverly Free Library; 9-11 a.m., Spencer Town Hall; and 10 a.m. to 2 p.m., Englebert’s Farm Store and Creamery.