ORCHID: To the U.S. Postal Service. As part of the 20th annual Stamp Out Hunger program, the Postal Service is asking residents to place non-perishable food items by mailboxes today. Residents can leave a bag containing canned soup, canned vegetables, pasta, rice or cereal next to their mailboxes prior to the time of regular mail delivery. Letter carriers then will collect the food as they deliver the mail and take it to a local food bank or pantry. Stamp Out Hunger began at the local level in the late 1980s and went nationwide in 1992.