At the Safeway where I live, there are nuns that stand outside with a grocery list of food they ask people to donate for them. I didn't know if they were really nuns so I asked the cashier, and they confirmed it, so it made it a lot easier for me to go ahead and donate food. They make food for the homeless and the donation goes straight into feeding these poor people so it's a lot better than giving food or money directly to the person, who will likely use it for drugs, etc.