The St. Margaret’s Guild would be grateful if you could return your bazaar-bought preserving jars, once you’ve consumed that delicious Million Dollar Relish, Pear Amber, Spicy Beets or Perky Pepper Jelly. If you come by on a Sunday morning, you’ll find a receiving basket in the breezeway entrance, just waiting to be filled. Every dozen returned jars saves the Guild $18, which helps keep costs and prices low and shows good environmental stewardship, too.