US Postal Service gears up to deliver envelopes for "Stamp Out Hunger" food drive in Billings Mail carriers teaming up with Billings Family Services on food drive and last updated 2021-05-18 20:11:52-04 The United States Postal Service is partnering with the Billings Family Service again this year for the food drive âStamp Out Hunger.â Stamp Out Hunger is in its 29th year in Billings, and all food gathered goes to less fortunate families in the community. In previous years, people would drop off non-perishable food items at Family Services on 3927 1 st Ave. S. Three years ago, USPS teamed up with the non-profit to help get more donations to those who needed it. Mail carriers would pick up food from residents along their routes and deliver it to Family Services.