Greenfield Savings Bank will celebrate the grand opening of its new branch in Northampton with a Winter Carnival Saturday.  The event will feature family activities and food, including hot chocolate, an ice sculptor, and a chili cook-off featuring local restaurants. As part of the celebration, Greenfield Savings Bank will give five $1,000 donations to Northampton non-profit organizations, and the bank is asking the public to select the recipients. Nominations were accepted through the bank's Facebook page, and voting is now underway.