Fill a Bag. Feed Families. 20th Anniversary of the annual 'Stamp Out Hunger' event. Fill a bag with non perishable food items and leave at your mailbox, post office or here at your favorite Starbucks!! America is asked to join USPS and letter carriers nationwide to combat one of this nations growing problems- Hunger. Last year 70.2 million pounds of food was donated...how much can we donate this year?!