The Minnesota Tool Library, 1620 Central Ave., #126, has scheduled four “Fix-ins” for this fall. They’re based on the idea of a sit-in or a love-in, except participants are invited to bring items that need fixing to the Library and learn to repair them themselves. From a jacket with a broken zipper to a chair with wobbly leg, there will be experts on hand to guide you through the process. Sundays, Sept. 18 and Oct. 16, 4-7 pm and Nov.…